Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
APPROVED VENDOR Hex Head Cap Screw: 3/8"-16 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: 3/8"-16 Thread Size, Plain, Stainless Steel

The APPROVED VENDOR Hex Head Cap Screw (SKU 811GJ4) is a Nylon Patch Lockable Hex Head Cap Screw with a 3/8"-16 thread size, fully threaded in plain stainless steel Grade 18-8. It meets ASME B18.2.1 dimensional…

SKU 3G-OTH-534082

Brand
APPROVED VENDOR
Item
Hex Head Cap Screw: 3/8"-16 Thread Size, Plain, Stainless Steel
Category
Nylon Patch Lockable Hex Head Cap Screws
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
31-PHF-37C-150
Type
Plain, Stainless Steel, Grade 18-8
Thread Style
Fully Threaded
Dimensional Standards
ASME B18.2.1
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

APPROVED VENDOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APPROVED VENDOR Hex Head Cap Screw (SKU 811GJ4) is a Nylon Patch Lockable Hex Head Cap Screw with a 3/8"-16 thread size, fully threaded in plain stainless steel Grade 18-8. It meets ASME B18.2.1 dimensional standards (MPN 31-PHF-37C-150).

Frequently Asked Questions

What is a nylon patch lockable hex head cap screw used for?

A nylon patch lockable hex head cap screw is used in industrial applications where vibration resistance is critical. The nylon patch creates a locking action that prevents loosening without needing separate lock washers or thread-locking compounds, making it ideal for machinery, automotive, and equipment assembly.

What are the specifications of the APPROVED VENDOR hex head cap screw 3/8"-16?

The APPROVED VENDOR hex head cap screw (MPN 31-PHF-37C-150) has a 3/8"-16 thread size, is fully threaded, plain stainless steel Grade 18-8, and meets ASME B18.2.1 dimensional standards. It is a nylon patch lockable type for vibration resistance.

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, customs clearance, and delivery to your location. Contact us to order the 3/8"-16 nylon patch lockable screw (SKU 811GJ4) for reliable sourcing.

How to select the correct hex head cap screw for an application?

To select the correct hex head cap screw, match thread size (e.g., 3/8"-16), length, material (stainless steel Grade 18-8 for corrosion resistance), and locking feature (nylon patch for vibration). Verify dimensional standards like ASME B18.2.1. For technical guidance, consult 3G Electric's specialists.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from APPROVED VENDOR

View all APPROVED VENDOR parts →
APPROVED VENDOR Hex Head Cap Screw: 3/8"-16 Thread Size, Plain, Stainless Steel, Grade 18-8 (MPN 31-PH-37C-125). Key specifications — Thread Style: Partially Threaded; Dimensional Standards: ASME B18.2.1.
APPROVED VENDOR
APPROVED VENDOR Hex Head Cap Screw: 3/8"-16 Thread Size, Plain, Stainless Steel, Grade 18-8 (MPN 31-PH-37C-125). Key specifications — Thread Style: Partially Threaded; Dimensional Standards: ASME B18.2.1.
APPROVED VENDOR Hex Head Cap Screw: 5/16"-18 Thread Size, Plain, Stainless Steel, Grade 18-8 (MPN 31-PH-31C-75). Key specifications — Thread Style: Fully Threaded; Dimensional Standards: ASME B18.2.1.
APPROVED VENDOR
APPROVED VENDOR Hex Head Cap Screw: 5/16"-18 Thread Size, Plain, Stainless Steel, Grade 18-8 (MPN 31-PH-31C-75). Key specifications — Thread Style: Fully Threaded; Dimensional Standards: ASME B18.2.1.
APPROVED VENDOR Hex Head Cap Screw: 5/16"-18 Thread Size, Plain, Stainless Steel, Grade 18-8 (MPN 31-PH-31C-100). Key specifications — Thread Style: Fully Threaded; Dimensional Standards: ASME B18.2.1.
APPROVED VENDOR
APPROVED VENDOR Hex Head Cap Screw: 5/16"-18 Thread Size, Plain, Stainless Steel, Grade 18-8 (MPN 31-PH-31C-100). Key specifications — Thread Style: Fully Threaded; Dimensional Standards: ASME B18.2.1.
APPROVED VENDOR Hex Head Cap Screw: 3/8"-16 Thread Size, Plain, Stainless Steel, Grade 18-8 (MPN 31-PH-37C-200). Key specifications — Thread Style: Partially Threaded; Dimensional Standards: ASME B18.2.1.
APPROVED VENDOR
APPROVED VENDOR Hex Head Cap Screw: 3/8"-16 Thread Size, Plain, Stainless Steel, Grade 18-8 (MPN 31-PH-37C-200). Key specifications — Thread Style: Partially Threaded; Dimensional Standards: ASME B18.2.1.
APPROVED VENDOR Hex Head Cap Screw: 5/16"-18 Thread Size, Plain, Stainless Steel, Grade 18-8 (MPN 31-PH-31C-125). Key specifications — Thread Style: Fully Threaded; Dimensional Standards: ASME B18.2.1.
APPROVED VENDOR
APPROVED VENDOR Hex Head Cap Screw: 5/16"-18 Thread Size, Plain, Stainless Steel, Grade 18-8 (MPN 31-PH-31C-125). Key specifications — Thread Style: Fully Threaded; Dimensional Standards: ASME B18.2.1.
APPROVED VENDOR Hex Head Cap Screw: 3/8"-16 Thread Size, Plain, Stainless Steel, Grade 18-8 (MPN 31-PH-37C-150). Key specifications — Thread Style: Partially Threaded; Dimensional Standards: ASME B18.2.1.
APPROVED VENDOR
APPROVED VENDOR Hex Head Cap Screw: 3/8"-16 Thread Size, Plain, Stainless Steel, Grade 18-8 (MPN 31-PH-37C-150). Key specifications — Thread Style: Partially Threaded; Dimensional Standards: ASME B18.2.1.
APPROVED VENDOR Hex Head Cap Screw: 3/8"-16 Thread Size, Plain, Stainless Steel, Grade 18-8 (MPN 31-PH-37C-300). Key specifications — Thread Style: Partially Threaded; Dimensional Standards: ASME B18.2.1.
APPROVED VENDOR
APPROVED VENDOR Hex Head Cap Screw: 3/8"-16 Thread Size, Plain, Stainless Steel, Grade 18-8 (MPN 31-PH-37C-300). Key specifications — Thread Style: Partially Threaded; Dimensional Standards: ASME B18.2.1.
APPROVED VENDOR Hex Head Cap Screw: 1/4"-20 Thread Size, Plain, Stainless Steel, Grade 18-8 (MPN 31-PH-25C-75). Key specifications — Thread Style: Fully Threaded; Dimensional Standards: ASME B18.2.1.
APPROVED VENDOR
APPROVED VENDOR Hex Head Cap Screw: 1/4"-20 Thread Size, Plain, Stainless Steel, Grade 18-8 (MPN 31-PH-25C-75). Key specifications — Thread Style: Fully Threaded; Dimensional Standards: ASME B18.2.1.