Value Collection MP30599-2 Hex Head Cap Screw 3/8-16

Product Description

The VALUE COLLECTION MP30599-2 is a hex head cap screw manufactured in Grade 316 stainless steel with an uncoated finish and partial threading along the shank. Sized at 3/8-16 thread pitch and 3.5 inches under the head, this fastener is built to the Unified National Coarse (UNC) standard. Grade 316 stainless provides elevated corrosion resistance compared to 304 grade, making it a practical choice for wet, chloride-rich, or chemically aggressive environments. Installers across plumbing, HVAC, pool equipment, and marine applications routinely specify 316 SS hardware where long-term fastener integrity is required.

This screw is suited for mechanical assemblies, equipment mounting, and structural connections where a partially threaded shank and a hex drive are appropriate. Typical applications include pool equipment frames, pump housings, outdoor conduit supports, and corrosion-exposed mechanical enclosures. The partial thread leaves a smooth shank section beneath the head, which resists loosening under vibration and allows for precise clamping of two mating parts. This fastener ships individually but requires a minimum order quantity of 10 units.

Key Features

• Grade 316 stainless steel construction for superior resistance to chlorides, salt spray, and corrosive chemicals
• 3/8-16 UNC thread form — common, widely compatible coarse-thread standard
• 3.5 inches length under head for deep-reach fastening applications
• Partially threaded shank for improved clamping and vibration resistance
• Uncoated finish — no plating or coating to flake, chip, or compromise thread tolerances
• Hex head drive for use with standard wrenches and sockets

Compatibility

Designed as a standard 3/8-16 UNC hex head cap screw compatible with any tapped hole or hex nut conforming to the 3/8-16 Unified National Coarse thread standard in inch-measurement systems.

Installation Notes

Install using a standard hex wrench or socket set sized for a 3/8-16 fastener. Ensure mating threads are clean and free of debris before driving. In pool, marine, or wet mechanical environments, verify all mating hardware is also stainless or corrosion-rated to avoid galvanic coupling with dissimilar metals. Power down or de-energize any associated equipment before performing mechanical fastener work on electrical enclosures or equipment panels.