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USA INDUSTRIALS Grade 8 Steel Hex Head Cap Screw - Grade 8 Steel Hex Head Cap Screws
USA INDUSTRIALSGrade 8 Steel Hex Head Cap Screws

USA INDUSTRIALS Grade 8 Steel Hex Head Cap Screw

USA INDUSTRIALS Grade 8 Steel Hex Head Cap Screws (SKU ZBOLT-3730, MPN ZBOLT-3730) are inch-system fasteners with a zinc-yellow finish, 5/16"-24 fine thread, 4-inch length, fully threaded, in a 25-piece small pack…

SKU 3G-OTH-678882

Also listed as: ZBOLT3730 · ZBOLT 3730

Brand
USA INDUSTRIALS
Item
Grade 8 Steel Hex Head Cap Screw
Part Number
ZBOLT-3730
Category
Grade 8 Steel Hex Head Cap Screws
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
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Technical Specifications

USA INDUSTRIALS
Manufacturer Part Number
ZBOLT-3730
Type
Grade 8, Zinc Yellow, 5/16"-24, Fine, 4 in lg, Fully Threaded, 25 PK
Pack Size
Small Pack
Dimensional Standards
ASME B18.2.1
Manufacturer Location
Globally Sourced
System of Measurement
Inch
Hex Head Cap Screw Type
Hex Head Cap Screw
Material Quality Standards
SAE J429

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USA INDUSTRIALS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

USA INDUSTRIALS Grade 8 Steel Hex Head Cap Screws (SKU ZBOLT-3730, MPN ZBOLT-3730) are inch-system fasteners with a zinc-yellow finish, 5/16"-24 fine thread, 4-inch length, fully threaded, in a 25-piece small pack. They meet dimensional standard ASME B18.2.1 and material quality standard SAE J429.

Frequently Asked Questions

What are the specifications of USA INDUSTRIALS Grade 8 Hex Head Cap Screw ZBOLT-3730?

The USA INDUSTRIALS ZBOLT-3730 is a Grade 8 steel hex head cap screw with a zinc-yellow finish, 5/16"-24 fine thread, 4-inch length, fully threaded, in a 25-piece pack. It meets ASME B18.2.1 dimensional and SAE J429 material quality standards.

What is a Grade 8 hex head cap screw used for?

Grade 8 hex head cap screws are high-strength fasteners used in heavy-duty industrial applications such as machinery assembly, automotive, and structural steel connections. The zinc-yellow finish provides moderate corrosion resistance, making them suitable for indoor and protected environments.

Where to buy USA INDUSTRIALS Grade 8 hex head cap screws worldwide?

3G Electric supplies USA INDUSTRIALS Grade 8 hex head cap screws worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver these fasteners to your facility. Contact us for pricing and lead time on the ZBOLT-3730.

How to select the right hex head cap screw for an application?

Select hex head cap screws based on grade (strength), thread size, length, and finish. For high-stress joints, Grade 8 steel offers the highest tensile strength among standard inch fasteners. Ensure the thread pitch (fine vs. coarse) matches the mating nut or tapped hole.

Used in

Common applications for USA INDUSTRIALS
Petrochemical industry — USA Industrials A193 B7 heavy hex bolts used in high-temperature flange connections on process piping.
Power generation — A193 B7 heavy hex bolts for bolting applications in steam lines and turbine housings.
Structural steel — Heavy hex bolts for high-strength structural connections in industrial buildings and equipment.
Maintenance and repair — Small packs of A193 B7 bolts for on-site replacement in high-pressure systems.
Chemical processing — Corrosion-resistant bolting for reactors and heat exchangers where elevated temperatures are present.
Oil and gas — A193 B7 bolts for wellhead and pipeline flange assemblies requiring reliable sealing.
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USA INDUSTRIALS Products

3G Electric supplies USA INDUSTRIALS grade 8 steel hex head cap screws. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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