Value Collection 3SSC907F0308 Hex Head Cap Screw Unf

Product Description

The VALUE COLLECTION 3SSC907F0308 is a partially threaded hex head cap screw designed for general mechanical fastening applications across plumbing, HVAC, electrical, and industrial service work. It is manufactured from 18-8 stainless steel, providing corrosion resistance suitable for both indoor and outdoor environments. The screw measures 3.5 inches in length under the head with a 7/16-20 UNF thread form, meaning it uses Unified National Fine thread for tighter thread engagement and improved resistance to loosening under vibration. The 5/8-inch hex drive accommodates standard hex wrenches and sockets. At 0.25 pounds, it is a lightweight but mechanically reliable fastener for a wide range of trade applications.

This cap screw is suited for mechanical assemblies, equipment mounting, and structural connections where corrosion resistance is a priority. The 7/16-20 UNF thread specification makes it a common choice for precision-fit fastening in equipment frames, access panels, and utility hardware found in residential and light commercial service environments. Partial threading allows for shoulder-bearing load distribution along the unthreaded shank. Trade professionals in HVAC, plumbing, and electrical service will recognize this screw in equipment repair and panel installation contexts.

Key Features

• 18-8 stainless steel construction provides corrosion resistance in wet and outdoor environments
• 7/16-20 UNF thread form delivers fine-pitch engagement for vibration-resistant fastening
• Partially threaded shank supports shear and bearing loads in structural connections
• 3.5 inches length under head accommodates thicker material stacks
• 5/8-inch hex drive compatible with standard hex sockets and wrenches
• Uncoated finish maintains dimensional accuracy and galvanic compatibility with stainless hardware

Compatibility

Designed as a standard 7/16-20 UNF hex head cap screw suitable for use wherever this thread size and length specification is required in mechanical and trade fastening applications.

Installation Notes

Installation should be performed with a calibrated torque wrench appropriate for 7/16-inch stainless steel fasteners to avoid galling, which is common with stainless threads. Apply an anti-seize compound to the threads before installation to reduce the risk of thread seizing during tightening. Verify thread compatibility with the mating nut or tapped hole before final assembly. Always follow applicable mechanical or structural codes for the trade discipline in which these fasteners are used.