5/16-18 x 4 Stainless Steel Hex Socket Head Bolts – Qty 10
Specifications:
Thread Size: 5/16"-18 (Coarse Thread)
Length: 4"
Head Style: Allen / Hex Socket
Material: 18-8 Stainless Steel
Finish: Natural Stainless
Quantity: 10 pieces
Condition: New
SKU: 1050
Product Description:
1050 – 5/16-18 x 4" Stainless Steel Allen Hex Socket Head Bolts (Qty 10)
These 5/16-18 x 4" stainless steel socket head bolts are designed for long-reach fastening in engine mounts, frame assemblies, marine projects, and heavy-duty repairs. The coarse thread provides strong holding power and quick installation.
Made from 18-8 stainless steel, they’re built for strength, corrosion resistance, and consistent torque with an Allen drive. Great for high-moisture or vibration-prone environments.
At East Coast Bolts, we won’t screw you, but our fasteners will.
Why Buy from East Coast Bolts:
Long, coarse-thread SAE bolts for serious fastening
18-8 stainless resists rust, ideal for marine and auto use
Ships quickly from our U.S. warehouse
60-day money back guarantee with free return shipping
Trusted by builders, restorers, and pros


