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USA INDUSTRIALS 18-8 Stainless Steel Sealing Hex Head Cap Screw - 18-8 Stainless Steel Sealing Hex Head Cap Screws
USA INDUSTRIALS18-8 Stainless Steel Sealing Hex Head Cap Screws

USA INDUSTRIALS 18-8 Stainless Steel Sealing Hex Head Cap Screw

USA INDUSTRIALS Self-Sealing Hex Head Bolt is an 18-8 stainless steel sealing hex head cap screw with a 1/2"-13 thread size, 1-inch length, plain finish, sold in a 5-pack (MPN ZBOLT-391).

SKU 3G-OTH-682092

Also listed as: ZBOLT391 · ZBOLT 391

Brand
USA INDUSTRIALS
Item
18-8 Stainless Steel Sealing Hex Head Cap Screw
Part Number
ZBOLT-391
Category
18-8 Stainless Steel Sealing Hex Head Cap Screws
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Technical Specifications

USA INDUSTRIALS
Manufacturer Part Number
ZBOLT-391
Type
18-8, Plain, 1 in lg, 5 PK
Thread Size
1/2"-13

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

Product Description

USA INDUSTRIALS Self-Sealing Hex Head Bolt is an 18-8 stainless steel sealing hex head cap screw with a 1/2"-13 thread size, 1-inch length, plain finish, sold in a 5-pack (MPN ZBOLT-391).

Frequently Asked Questions

What is a self-sealing hex head bolt used for?

A self-sealing hex head bolt is used in applications requiring a leak-proof seal, such as fluid handling, hydraulic systems, and pressurized equipment. The 18-8 stainless steel construction provides corrosion resistance, making it suitable for industrial environments where vibration or thermal cycling could loosen standard fasteners.

What are the specifications of the USA INDUSTRIALS self-sealing hex head bolt?

This USA INDUSTRIALS bolt is an 18-8 stainless steel sealing hex head cap screw with a 1/2"-13 thread size, 1-inch length, and plain finish. It is sold in a 5-pack with manufacturer part number ZBOLT-391. The self-sealing design incorporates a pre-applied sealant to prevent leaks without additional washers.

Where to buy USA INDUSTRIALS self-sealing hex head bolts worldwide?

3G Electric supplies USA INDUSTRIALS self-sealing hex head bolts worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver to any international destination. Contact us for pricing and lead time on the ZBOLT-391 5-pack or other fastener requirements.

How to install a self-sealing hex head bolt?

Installation is similar to a standard hex head bolt: clean the threaded hole, apply the bolt by hand to avoid cross-threading, then torque to the manufacturer's specification. The pre-applied sealant activates upon tightening, so avoid over-torquing. For critical applications, verify compatibility with the fluid or pressure rating.

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 18-8 stainless steel sealing 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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