Value Collection 2-SRM-31C-125 Machine Screw 5/16-18

Product Description

The VALUE COLLECTION 2-SRM-31C-125 is a 5/16-18 x 1-1/4 inch round head slotted machine screw manufactured from Grade 316 stainless steel with a bright, uncoated finish. Grade 316 stainless steel provides superior corrosion resistance compared to standard 304-grade fasteners, making this screw well suited for wet, caustic, or outdoor environments. The slotted round head drive is compatible with standard flat-head screwdrivers. This fastener is sold individually and is appropriate for use by HVAC technicians, plumbers, electricians, pool service professionals, and general trade installers requiring a reliable corrosion-resistant fastener.

This machine screw is used in a wide range of light-duty and medium-duty fastening applications across residential and commercial trade work. Common install scenarios include equipment panels, enclosures, pump housings, electrical junction boxes, and pool or spa equipment where moisture exposure is a concern. The 5/16-18 thread designation follows Unified National Coarse standards, making replacement and sourcing straightforward in the field.

Key Features

• Grade 316 stainless steel construction for strong corrosion resistance in wet and chemical environments
• 5/16-18 Unified National Coarse thread for broad compatibility with standard tapped holes and nuts
• Round head profile distributes clamping load across a wider surface area
• Slotted drive accepts standard flat-head screwdrivers, common in all trade toolkits
• Bright, uncoated finish maintains dimensional accuracy without added plating thickness
• 1-1/4 inch length under head for consistent grip in standard panel and enclosure material thicknesses

Compatibility

Designed as a standard Unified National Coarse machine screw for use in any 5/16-18 tapped hole or paired with a 5/16-18 hex nut or coupling nut across equipment panels, enclosures, and mechanical assemblies.

Installation Notes

De-energize and lock out equipment before removing or replacing fasteners on electrical enclosures or HVAC equipment panels. Use a properly sized flat-head screwdriver to avoid damaging the slotted drive. Do not over-torque into tapped aluminum or plastic housings. Confirm thread engagement length is adequate for the material being fastened before final assembly.