What is a hex head cap screw?

A hex head cap screw uses a hexagonal (six-sided) recess in the head, which is driven with a hex wrench or Allen key. This type of fastener is common in engine components for its ease of use and secure tightening.

What does the zinc plating do?

The zinc plating on this screw acts as a protective barrier against rust and corrosion. This helps maintain the integrity and appearance of the fastener, especially in environments where moisture or chemicals might be present.

What is this screw typically used for?

While specific applications depend on the engine build, this size and type of screw is often used for securing various engine components, brackets, or covers where a longer, strong fastener is required.

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Trusted Since 1957

Est. 1957

Specifications

Brand: S&S Cycle
Part #: 50-0117
UPC: 50-0117

S&S Cycle 5/16-18 x 3-1/2in Screw

Name: S&S Cycle 5/16-18 x 3-1/2in Screw
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-5-16-18-x-3-1-2in-screw-t14-663022
Price: 6.95 USD
Availability: BackOrder

$6.95

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S&S Cycle 5/16-18 x 3-1/2in Screw. Zinc plated steel for durability.

Key Features

Fits 5/16-18 thread size and is 3-1/2 inches long.
Steel construction offers solid strength for engine applications.
Zinc plating helps resist corrosion.

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About this part

Product Details

S&S Cycle is well-known for making high-performance engine and exhaust components for Harley-Davidson motorcycles. This 5/16-18 x 3-1/2 inch screw is a straightforward hardware piece that fits into their engine component line.

It's a hex head cap screw, meaning it uses a standard hex wrench for installation, which is pretty common for engine work. The screw is made from steel and features a zinc plating. This plating helps protect the steel from corrosion, which is important for keeping engine components secure and looking good over time.