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APPROVED VENDOR Hex Head Cap Screw: 5/16"-18 Thread Size, Plain, Stainless Steel - Nylon Patch Lockable Hex Head Cap Screws
APPROVED VENDORNylon Patch Lockable Hex Head Cap Screws

APPROVED VENDOR Hex Head Cap Screw: 5/16"-18 Thread Size, Plain, Stainless Steel

The APPROVED VENDOR Hex Head Cap Screw (SKU 811GK2) is a Nylon Patch Lockable Hex Head Cap Screw with a 5/16"-18 thread size. It is plain, stainless steel, Grade 18-8, fully threaded, and conforms to ASME B18.2.1…

SKU 3G-OTH-534085

Brand
APPROVED VENDOR
Item
Hex Head Cap Screw: 5/16"-18 Thread Size, Plain, Stainless Steel
Category
Nylon Patch Lockable Hex Head Cap Screws
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
31-PH-31C-125
Type
Plain, Stainless Steel, Grade 18-8
Thread Style
Fully Threaded
Dimensional Standards
ASME B18.2.1
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APPROVED VENDOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APPROVED VENDOR Hex Head Cap Screw (SKU 811GK2) is a Nylon Patch Lockable Hex Head Cap Screw with a 5/16"-18 thread size. It is plain, stainless steel, Grade 18-8, fully threaded, and conforms to ASME B18.2.1 dimensional standards (MPN 31-PH-31C-125).

Frequently Asked Questions

What is an APPROVED VENDOR Nylon Patch Lockable Hex Head Cap Screw used for?

This hex head cap screw is used in industrial fastening applications where vibration resistance is critical. The nylon patch locks the threads to prevent loosening, making it suitable for machinery, equipment assembly, and structural joints across industries like machining, material handling, and power transmission.

What are the specifications of the APPROVED VENDOR Hex Head Cap Screw 31-PH-31C-125?

This screw has a 5/16"-18 thread size, is fully threaded, plain finish, stainless steel Grade 18-8, and conforms to ASME B18.2.1 dimensional standards. The manufacturer part number is 31-PH-31C-125, and it is a Nylon Patch Lockable design for secure fastening.

Where to buy APPROVED VENDOR Hex Head Cap Screws worldwide?

3G Electric supplies APPROVED VENDOR hex head cap screws worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this fastener to your facility. Contact us for pricing and lead time on this Grade 18-8 stainless steel screw.

How to select the right Nylon Patch Lockable Hex Head Cap Screw?

Select based on thread size, material, and grade for your application. This screw uses a 5/16"-18 thread, stainless steel Grade 18-8, and is fully threaded per ASME B18.2.1. The nylon patch provides locking without separate washers, ideal for environments needing corrosion resistance and vibration control.

Used in

Common applications for APPROVED VENDOR
Laboratory sampling — APPROVED VENDOR clear wide mouth glass bottles for collecting and storing liquid samples in non-sterile environments.
Steam heating maintenance — APPROVED VENDOR forged brass radiator valves for regulating steam flow in commercial building heating systems.
High-pressure cleaning — APPROVED VENDOR turbo spray nozzles for pressure washers used in industrial equipment cleaning up to 6,000 psi.
Cleanroom operations — APPROVED VENDOR vinyl task chairs for seating in ISO 5 classified manufacturing or assembly areas.
General sealing — APPROVED VENDOR natural rubber stoppers for closing laboratory flasks or test tubes in educational or research settings.
Tamper-evident security — APPROVED VENDOR brass lead and wire seals for securing utility meters, cargo containers, or access panels.

APPROVED VENDOR Products

3G Electric supplies APPROVED VENDOR nylon patch lockable hex head cap screws. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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