Value Collection 204240C Hex Cap Screw 3/8-16 X 3-1/2 in 316 Ss

Product Description

The VALUE COLLECTION 204240C is a partially threaded hex head cap screw sized 3/8-16 x 3-1/2 inches, manufactured from Grade 316 stainless steel with a bright uncoated finish. The UNC thread form and partially threaded shank make this fastener well suited for applications requiring a clamping grip along an unthreaded bearing length. Grade 316 stainless provides elevated resistance to chlorides and corrosive media compared to standard 304 alloy, making it a common choice in wet or chemically exposed environments. This screw is driven with a standard hex wrench or socket and is sized for use with a 3/8-inch nut or tapped hole.

This fastener is used across plumbing, HVAC, pool and spa, and general mechanical assembly wherever corrosion resistance is a primary requirement. Typical applications include equipment mounting in mechanical rooms, pool equipment pads, marine-adjacent installations, and stainless-compatible structural connections. The inch measurement system and UNC thread standard align with standard North American hardware and equipment. Length is measured under the head, per standard fastener convention.

Key Features

• Grade 316 stainless steel construction for superior corrosion resistance in chloride and chemical environments
• 3/8-16 UNC thread size with partially threaded shank for secure clamping grip
• 3-1/2 inch length under head for deeper engagement in structural and equipment applications
• Bright uncoated finish maintains dimensional accuracy and natural stainless surface
• Inch measurement system with UNC thread standard matches North American hardware

Compatibility

Designed for use with standard 3/8-16 UNC tapped holes and nuts in inch-system assemblies requiring Grade 316 stainless steel fasteners.

Installation Notes

Install with a properly sized hex wrench or socket drive to avoid rounding the fastener head. Stainless steel fasteners are susceptible to galling during installation — apply an appropriate anti-seize compound to the threads before assembly. Confirm the mating hole or nut is also rated for the service environment to maintain corrosion resistance through the full fastener assembly.