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USA INDUSTRIALS Square Head Bolt: Steel, Grade 2, Plain, 5/16"-18 Thread Size, 4 in lg - Low Strength Steel Square Head Bolts
USA INDUSTRIALSLow Strength Steel Square Head Bolts

USA INDUSTRIALS Square Head Bolt: Steel, Grade 2, Plain, 5/16"-18 Thread Size, 4 in lg

USA INDUSTRIALS Low Strength Steel Square Head Bolts, Grade 2, Plain, with 5/16"-18 thread size and 4 in length, sold in packs of 10 (MPN ZBOLT-2290).

SKU 3G-OTH-676936

Also listed as: ZBOLT2290 · ZBOLT 2290

Brand
USA INDUSTRIALS
Item
Square Head Bolt: Steel, Grade 2, Plain, 5/16"-18 Thread Size, 4 in lg
Category
Low Strength Steel Square Head Bolts
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

USA INDUSTRIALS
Manufacturer Part Number
ZBOLT-2290
Type
Grade 2, Plain, 4 in lg, 10 PK
Thread Size
5/16"-18

Technical Documents

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

Product Description

USA INDUSTRIALS Low Strength Steel Square Head Bolts, Grade 2, Plain, with 5/16"-18 thread size and 4 in length, sold in packs of 10 (MPN ZBOLT-2290).

Frequently Asked Questions

What is a USA INDUSTRIALS square head bolt used for?

A USA INDUSTRIALS square head bolt is used in industrial fastening applications where the square head prevents rotation during tightening. Common uses include machinery assembly, structural connections, and equipment mounting where a low-strength Grade 2 plain steel fastener is sufficient.

What are the specifications of the USA INDUSTRIALS ZBOLT-2290 square head bolt?

The USA INDUSTRIALS ZBOLT-2290 is a Grade 2 plain steel square head bolt with a 5/16"-18 thread size and 4 in length. It is sold in packs of 10. The square head design provides positive grip for wrenching in confined spaces.

Where to buy USA INDUSTRIALS ZBOLT-2290 square head bolts worldwide?

3G Electric supplies USA INDUSTRIALS ZBOLT-2290 square head bolts worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this Grade 2 plain steel fastener pack.

How to select the right square head bolt for industrial use?

Select a square head bolt based on thread size, length, material, and grade. For low-strength applications, Grade 2 plain steel like the USA INDUSTRIALS ZBOLT-2290 (5/16"-18 x 4 in) is suitable. Ensure the square head fits your wrenching access and the bolt meets load requirements.

Used in

Common applications for USA INDUSTRIALS
Chemical processing — USA INDUSTRIALS FEP-encapsulated silicone cam-and-groove gaskets for corrosion-resistant sealing in coupling systems.
Food and beverage — USA INDUSTRIALS food-grade FKM cam-and-groove gaskets for sanitary fluid transfer in processing lines.
Water treatment — USA INDUSTRIALS 304 stainless steel gate valves for isolation in piping systems handling non-potable water.
Oil and gas — USA INDUSTRIALS brass ball valves for manual shut-off in low-pressure gas or fluid lines.
Pharmaceutical manufacturing — USA INDUSTRIALS 316 stainless steel globe valves for precise flow control in clean-room environments.
General industrial MRO — USA INDUSTRIALS polypropylene cam-and-groove fittings for temporary hose connections in plant maintenance.

USA INDUSTRIALS Products

3G Electric supplies USA INDUSTRIALS low strength steel square head bolts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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