Heavy Hex Bolts

Heavy Hex Bolts, Standard heavy hex structural bolts, ASTM A307 ASTM A325 and A490 grade specifications, low and medium carbon steel, alloy, and stainless steel bolts bolting China supplier

Heavy hex bolts have a head that is larger than a standard (finish) hex head. Standard heavy hex structural bolts are made of low to mid carbon steel. The large head offers a greater bearing surface that distributes the clamping load over a greater area.

Heavy Hex Bolt are designed for use in a variety of high temperature, high strength industrial applications, such as with steel fabrication and general construction. They feature a thicker head than standard or regular hex bolts, and offer a greater bearing surface that distributes the clamping load over a wider area. Heavy hex bolt can be made with a few different materials including low and medium carbon steel, alloy, and stainless steel, and are available plain, hot dipped galvanized, phosphate, zinc or cadmium plated. Some sizes of heavy hex bolt are fully threaded while other sizes offer a smooth shoulder area.

heavy hex bolt

heavy hex bolt

The ASTM A307 specification covers carbon steel bolts and studs ranging from 1/4″ through 4″ diameter. This is your everyday, run of the mill bolt specification often manufactured using A36 round bar. There are three grades A, B, and C which denote tensile strength, configuration, and application.

Standard Thread Lengths
Bolt lengths ≤ 6″: Thread length = (2 X diameter) + 1/4″Bolt lengths > 6″: Thread length = (2 X diameter) + 1/2″

The ASTM A193 standard covers alloy steel and stainless steel bolting materials for high temperature or high pressure service. This specification includes fasteners intended for use in pressure vessels, valves, flanges, and fittings. Although, this material is often available in UNC national coarse thread, diameters above one inch are typically specified 8 threads per inch (tpi).

WINDO METAL manufactures heavy hex bolts from 1/2″ diameter through 2-1/2″ diameter in most ASTM, AASHTO, and SAE specifications. Special tooling can be created to produce nonstandard head dimensions or bolt heads with your company’s name and/or logo. 1. Cutting 2. Heading 3. Threading 4. Hot-Dip Galvanizing

Heavy Hex Bolt Specifications
General heavy hex bolts include ASTM A307 specifications, which covers carbon steel bolts and studs ranging from 1/4” through 4” in diameter. This is the most common heavy hex bolt and includes Grades A, B, and C which denote tensile strength, configuration, and its intended use.

The ASTM A193 specification covers alloy steel and stainless steel bolt materials for high temperature and high pressure applications.

Heavy hex structural bolts are designed for steel-to-steel connections and include ASTM A325 and A490 specifications, which covers bolts from 1/2” up to 1-1/2” in diameter. Since these heavy hex bolts are intended for structural connections, they have shorter thread lengths than standard hex bolts.

As a national base factory and supplier of heavy hex bolt, WINDO Metal Fasteners carries a huge selection of bolt sizes, lengths, materials and finishes, however if you need any assistance fining the heavy hex bolt you need for your application, please contact us today. Our knowledgeable staff is here to help!

Torque Shear Bolt A325M

Heavy Hex Bolt A325M

Heavy Hex Bolt A325M For Structural Building Material: Carbon Steel, Stainless steel, Alloy Steel etc Size: M4-M100 1/4″-4″ Length: 6mm to 100mm Thread: UNC, UNF are available Surface Treatment: Black oxide, zinc plate, copper plating, Dacromet, Teflon, phosphating Certificate: ISO9001:2008, ROHS, SGS, CE Standard: DIN, ISO, ANSI, ASTM, ASME, GB, JIS After-sale: Solve all your […]

ASTM Heavy Hex Bolts

ASTM Heavy Hex Bolts

ASTM Heavy Hex Bolts Size Range: M3-M100 Grade: 4.6, 4.8, 5.6, 5.8,6.8, 8.8, 10.9 and 12.9 Material: A193 B7/ A194 2H Standard: DIN ,ANSI/ASME,BS,GB,JIS,etc Thread: UNC,UNF,BST,etc. Technology: Forged Machine + CNC Machining. Surface/ color:usually Black painting for carbon steel; Suitable Medium water, oil, petroleum, gas, chemical, power, metallurgy, shipbuilding, comstruction etc. Certificate: Mill test Certificate […]

A325M Heavy Hex Bolts

A325M Heavy Hex Bolts

A325M Heavy Hex Bolts Standard: A325M Grade: A325M Size: M12-M36; 1/2″-1 1/2″ Finish: HDG Material: medium carbon steel Length: 10mm-800mm Mark:According to customer’s requirement. Delivery time: Normally in 30-40 days. Package: Cartons & pallets or according to customer’s requirement. Our main products are fasteners: bolts, screws, rods, nuts machined parts. Every process will be checked […]

High Strength A325m Hex Structural Bolt

High Strength A325m Hex Structural Bolt

High Strength A325m Hex Structural Bolt Standard: DIN,ASTM/ANSI JIS EN ISO,AS,GB Material: Stainless Steel: SS201, SS303, SS304, SS316,SS316L,SS904L,F593 Steel Grade: DIN: Gr.4.6,4.8,5.6,5.8,8.8,10.9,12.9; SAE: Gr.2,5,8; ASTM: 307A, 307B, A325, A394, A490, A449, Finishing: Zinc (Yellow,White,Blue,Black), Hop Dip Galvanized(HDG), Black Oxide, Geomet, Dacroment, anodization, Nickel plated, Zinc-Nickel plated Production Process: M2-M24: Cold Froging, M24-M100 Hot Forging, Machining […]

Hex Head Bolt

Hex Head Bolt ASTM

Hex Head Bolt ASTM Commodity: Top quality customized fastenes grade B astm a307 hex bolt Material: Carbon Steel,Alloy steel, stainless steel and brass Standard: DIN931/933,DIN 6914,A325/A325M Grade: 4.8/6.8/8.8/10.9/12.9 Surface Finish: Black,Zinc plated,Copper plating,Phosphating,Mechanical galvanized Size: M6-M164; 1/4″-2″ Certificated: ISO9001:2008;ROHS,SGS and environment protection Packing: By carton or gunny bag then on wooden pallet Hex Head Bolt […]

Heavy Hex Bolts ASTM A490

Heavy Hex Bolts ASTM A490

Heavy Hex Bolts ASTM A490 Heat treatment: Tempering, Hardening, Spheroidizing, Stress Relieving length : 12mm-200mm High Tensile structural heavy hex bolts astm a490 Size: M1~M46 Available Material: stainless steel,alloy steel,etc Surface treatment: Black oxide, Phosphate, Zinc plated, Dacroment,etc Standard: ISO, BS, ANSI, GB,DIN, JIS, Nonstandard Advantage: OEM / ODM / customized service provided Quality control: […]

A490 Heavy Hex Structural Bolt

A490 Heavy Hex Structural Bolt Standard: DIN,ASTM/ANSI JIS EN ISO,AS,GB Material Stainless Steel: SS201, SS303, SS304, SS316,SS316L,SS904L,F593 Surface: Plain,Zinc plate etc. Length: As per require product style: Hex Bolt Thread: All thread or half OEM: As customers’ drawing Package: Caton+pallet Export Markets: Global Finishing: Zinc(Yellow,White,Blue,Black),Hop Dip Galvanized(HDG),Black Oxide, Geomet, Dacroment, anodization, Nickel plated, Zinc-Nickel plated […]

High Density Hex Bolt A490

High Density Hex Bolt A490

High Density Hex Bolt A490 Nonstandard precision bolt and nut (ANSI BS DIN GB ISO JIS) Standard: DIN933/931/960/961/6914 ISO4014/4017, JIS B1180, BS, IFI Standard Size: M6X16~M64x500 1/4X16″ ~ 2″X16″ Thread: unc/unf, metric thread Material: Carbon steel, alloy steel, stainless steel Finish: Plain, ZincPlated(Clear/Blue/Yellow/Black), black oxide, H.D.G, DAC,GOEMET Packing: Bulk in cartons (25kg Max.)+wood Pallet or […]

Heavy Hex Bolt A325 A490

Heavy Hex Bolt A325 A490

Heavy Hex Bolt A325 A490 High Strength Torsion Shear Bolt/TC Bolt Size: M16, M20,M22,M24,M27,M30 Length: 50mm-200mm Grade: 10.9S Standards: GB, DIN, ISO, ANSI/ASTM, B7, BS, JIS etc Material: 20MnTiB,ML20MnTiB,35VB,35CrMo,etc Surface: Black, or according to customers’ requirement Heavy Hex Bolt A325 A490 Usage: Steel structures,multi-floor,high-rise steel structure, buildings,industrial buildings,high-way,railway,steel steam,tower,power station,and other structure workshop frames. DOWEDO’s […]

Structural Heavy Hex Bolts A490

Structural Heavy Hex Bolts A490

Structural Heavy Hex Bolts A490 High Tensile structural hex bolt astm a490 Size: M1~M46 Grade: 4.6,4.8,5.6,6.8,8.8,9.8,10.9,etc Available Material: stainless steel, alloy steel, etc Surface treatment: Black oxide, Phosphate, Zinc plated, Dacroment,etc Standard: ISO, BS, ANSI, GB, DIN, JIS, Nonstandard Advantage: OEM / ODM / customized service provided Quality control: ISO standard,100% Whole range inspection through […]

A490M Hot forged Big Bolt

A490M Hot forged Big Bolt

A490M Hot forged Big Bolt A325, A490, A325M, A490M High Strength Structural Hex bolts Surface: HDG/BLACK Material: Gr8.8 HDG Gr10.9 BLACK Gr12.9 BLACK 42CrMO Bent bolt, U bolt, eye bolt, L bolt, wheel bolt, flange bolt Hex bolts astm a325 a490 a325m a490m N933, din931, ISO 4014, ISO 4015, ISO 4017: structural zinc plated carbon […]

High Strength A490 Bolts

High Strength A490 Bolts

High Strength A490 Bolts High Strength Bolt grade 8.8 10.9 DIN931 DIN933 A325 A490 Material: Carbon Steel, Stainless steel, Alloy Steel etc Size: M4-M100 1/4″-4″ Length: 6mm to 100mm Thread: UNC, UNF are available Surface Treatment: Black oxide, zinc plate, copper plating, Dacromet, Teflon, phosphating Certificate: ISO9001:2008, ROHS, SGS, CE Standard: DIN, ISO, ANSI, ASTM, […]

A490 High Strength Structural Hex Bolts

A490 High Strength Structural Hex Bolts

A490 High Strength Structural Hex Bolts standard: DIN, ASTM,JIS,BS,AS,ISO,GB,Nonstandard bolt (according to your order),etc. Material: Carbon Steel Grade: A, 2, 5 or others Finish: Black Size: M3-M100; 1/4″-4″ Certificate: ISO9001:2008; Packing: By carton, then by pallet DOWEDO has strong production capacity and sells professional standard bolt and fasteners. our products accord with the international quality […]

A490 Heavy Bolts

A490 Heavy Bolts

ASTM A490 heavy bolts, Carbon Steel Zinc Plated hex bolt A490 Heavy Bolts Standard: ASME, ASTM, IFI, ANSI, DIN, BS, JIS Material: Alloy Steel Grade: ASTM A490 TYPE 1,2,3 Thread: M, UNC, UNF, BSW Finish: Self Color, Plain, Zinc Plated ( Clear/Blue/Yellow/Black ), Black Oxide, Nickel, Chrome, HDG Certificate: Mill Test Certificate, SGS, TUV, CE, […]

Metric Steel Hex Bolts

Metric Steel Hex Bolts

Metric Steel Hex Bolts Material: Mild Carbon Steel: C15, C35, C45. Stainless Steel: SS301, SS302, SS303, SS304, SS316, SS410, SS416, SS430. Iron:12L14, 12L15. Brass:C3602, C3604, Hpb59, Hpb62, Hpb65, Hpb68, Hpb70… Other bronze and copper Aluminum:AL6061,Al6063 etc Nylon:PA66, PE.PVCTeflon etc Heat Treatment: Tempering, Hardening, Spheroidizing, Stress Relieving Surface Finish: Zinc, Nickel, Bronze, Copper,Phosphate, Oxidation black, Passivation, […]

A325M Heavy Structural Bolts

A325M Heavy Structural Bolts

A325M Heavy Structural Bolts Hexagon large head bolts Standard: DIN6914, A325M, BS3692, UNI5712 Grade: 4.6, 4.8, 8.8, 10.9, 12.9, AISI 2, AISI 5, AISI 8, AISI 10. Size: M4-M80; 1/4″~3-1/4″ Material: stainless steel304, 316, carbon steel35#, 45#, alloy steel, brass… Surface treatment: galvanized,Black,Nickel plate,Chrome plate,HDG,Zinc plated A325M Heavy Structural Bolts Packaging Details: bulk packing in […]

ASTM HEX Bolt

Heavy Hex Structural Bolt ASTM A325M Standard: ASME B 18.2.1, IFI149,DIN931, DIN933, DIN558, DIN960, DIN961, DIN558, ISO4014 and etc. Size: standard & non-standard, spport customized Material: Carbon Steel, Alloy Steel, Stainless Steel, Brass and etc. Grade: SAE J429 Gr.2, 5,8; ASTM A307Gr.A, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 and etc. Thread: UNC,UNF Finish: Plain, […]

Zinc Plated A325M Bolts

Zinc Plated A325M Bolts

Zinc Plated A325M Bolts Commodity: Top quality customized A325M hex bolt Material: Carbon Steel,Alloy steel, stainless steel and brass Standard: DIN931/933,DIN 6914,A325/A325M Grade: 4.8/6.8/8.8/10.9/12.9 Surface Finish: Black,Zinc plated,Copper plating,Phosphating,Mechanical galvanized Zinc Plated A325M Bolts Size: M6-M164; 1/4″-2″ Supply Ability: 500 MT per month Certificated: ISO9001:2008;ROHS,SGS and environment protection Packing: By carton or gunny bag then […]

Metric Bolts ASTM

Metric Bolts ASTM

Metric Bolts ASTM DIN933 DIN934 ASTM A193M Standard: DIN,UNC,BSW,UNF,ASTM, DIN,UNC,BSW,UNF Product name: Metric Bolts ASTM A193M ASTM A325M Grade: 4,8/ 8.8/ 10.9/ 12.9 Ect Color: Oxidation blackening,Zinc plating, Surface treatment: HDG, PTFE coated, plain, black, galvanized, yellow zinc plated Packing: 25kg carton then pallet or according to the customer’s need. Application: Machinery industry Length: 15-200mm,customized […]

Galvanized Heavy Hex Bolt

Galvanized Heavy Hex Bolt A325M

Galvanized Heavy Hex Bolt A325M detail information: Material: Stainless Steel: SS201, SS303, SS304, SS316, SS410, SS420 Carbon Steel: 4.8, 6.8, 8.8, 10.9, 12.9 Titanium: GR1-GR5, Aluminum, Brass,etc. Size: M1.6-M39 Length: Up to 300mm Head Type: Flat, JIS pan, Oval, Round, Binding, I.HD, Brazier, PF. HD, Button, Fillister, Ansi.Pan, Pan washer,Indented Hex etc. Standard: ISO,GB, DIN, […]

ASTM A325 Hex Flange Bolt

ASTM A325 Hex Flange Bolt

High Strength Hex Head Bolts, High Strength Hex Head Bolt Nut ASTM A325 Hex Flange Bolt Material:Carbon Steel Certificate: ISO9001:2008,SGS,RoHS Grade: 4.8/8.8/10.9/12.9 Finish:Black Oxide/Zinc Plated/HDG/Dacromet/Nickel Plated Thread: Coarse, Fine Used: Building Industry Machinery Certification: ISO, ROHS, SGS Available Standard: DIN, ANSI, ASTM, JIS, BSW Strength: Grade 4.8, Grade 8.8, Grade10.9, Grade12.9 A2-70, A4-70, A4-80 Finishing: […]

A325 Heavy Hex Bolts

A325 Heavy Hex Bolts

High Strength Hex Head Bolt Nut, Titanium Plating Bolt Nut, High Strength Hex Head Bolt,Heavy Hex Bolt, Black Oxide Carbon Steel Hex Bolts A325 Heavy Hex Bolts Specifications as per ANSI B18.2.1 Detailed dimensions as below table 3 Size: 3/8×2.1/2 inch Grade ASTM A307 (type A) Material: Carbon Steel Surface: Black Oxide More Options of […]

High Stretch Structure Bolt

High Stretch Structure Bolt

High Strength Hex Head Bolt Nut, Titanium Plating Bolt Nut, High Strength Hex Head Bolt,Heavy Hex Bolt High stretch structure bolt 1)Standard: ANSI 2)Grade: 5 , 8 3)Size: 1/4~1-1/2 length:1/2~9 4)Material:carbon steel, alloy steel.(35k,45#,40Cr,35CrMoA,42CrMoA) 5)Process:Cold heading/hot forging 6)Finish:black oxide, zinc plated (white Zinc,blue Zinc,color Zinc,white and blue Zinc,black Zinc),hot dip galvanized, Dacromet etc. 7)Packing:PE bag,carton. […]

Black Oxide Hex Bolt

Black Oxide Hex Bolt

High Strength Hex Head Bolts, High Strength Hex Head Bolt Nut, Titanium Plating Bolt Nut, High Strength Hex Head Bolt,Heavy Hex Bolt Specifications of Black Oxide Hex Bolt: Available Packing:Bulk in master cartons, then on pallets Certification: ISO, ROHS, SGS Sample:Free Port:Shanghai,Ningbo Black oxide hex bolt Material: Carbon Steel Standard: DIN GB ISO JIS BA […]

Heavy Hex Bolt A325 Bolt

Heavy Hex Bolt A325 Bolt

Heavy Hex Bolt,Bolt and Fasteners,Stainless Steel Hex Bolts,Structural Bolt,High Quality Hexagon Bolts,High Stretch Structure Bolt Features of Heavy Hex Bolt A325 Bolt Model Number:ASTM A325 Standard:ASTM Material:Carbon Steel Grade:8S Finish:H.D.G. Certificate:ISO 9001:2008 Head type:Hex Head MOQ:900kgs/size Size:1/2″ to 1 1/2″ Packing:Bulk packed in 25kg cartons then into 900kgs pallet Material: carbon steel Surface treatments: plain, […]

Black Hexagonal Bolt Nut Washer

Black Hexagonal Bolt Nut Washer

Black Hexagonal Bolt Nut Washer, High Strength Nut Bolt, BSW BSF High Strength Hex Head Bolts Nuts, Black Hexagon High strength hex head bolt nut carbon steel bolts with nut and washer Black Hexagonal Bolt Nut Washer Features: Material Carbon steel Color plain,black,zinc plated,H.D.G. Standard DIN ISO JIS GB ANSI ASME BSW Grade 4.8,6.8,8.8,10.9,12.9 Thread […]

High Strength Bolt Nut Washer

High Strength Bolt Nut Washer

High Strength Bolt Nut Washer, BSW BSF High Strength Hex Head Bolts Nuts, Hexagonal Bolt and Nut, black hex Head Steel Bolt and nut,  High Strength Hexagon Head Bolts Grade 10.9 Plated Hot Galvanized Hex Nut and Bolt High Strength Bolt Nut Washer Features: Material Carbon steel Color plain,black,zinc plated,H.D.G. Standard DIN ISO JIS GB […]

High Strength Hex Bolt

High Strength Hex Bolt

High Strength Hex Bolt, bolts nuts and washers, High Strength M20 M22 M24 M27 class grade 10.9 structural hex head bolt, High Strength Precision Forging Machining Hex Head Bolts Product name High strength Hex Bolt with Nut Washer Materials Alloy steel: 40Cr/42CrMo/B7/35CrMo Standard ASTM A325,ASTM A490, JIS B1186(F10T), EN14399 GRADE 10.9 SIZE RANGE(Inch) Dia.: 1/2~1 […]

Heavy Hex Bolt

ANSI ASME B18.2.1 Heavy Hex Bolt

ANSI ASME B18.2.1 Heavy Hex Bolt, Black Oxide Carbon Steel Hex Bolts, bOxidation black 8.8 grade Black hex bolt, DIN933/DIN931 HEX BOLT AND NUT,Hexagon BOLTS HOT DIP GALVANIZING GRADE 8.8 China Manufacturer ANSI ASME B18.2.1 Heavy Hex Bolt FEATURES Specifications as per ANSI B18.2.1 Detailed dimensions as below table 3 Size: 3/8×2.1/2 inch Grade ASTM […]

ASTM A307 A325 A449 Heavy Hex Bolts

ASTM A307 A325 A449 Heavy Hex Bolts

ASTM A307 A325 A449 Heavy Hex Bolts, Black Oxide Carbon Steel Hex Bolts, bolts, studs, rivets, pins, washers, stamping & tooling parts, Steel Socket Cap Screw, Flat Head, Internal Hex Drive bolt China Manufacture low price aluminium hex bolts and nuts Heavy Hex Bolts FEATURES Specifications as per ANSI B18.2.1 Detailed dimensions as below table […]