ALLWIN #6-32 Nylon Insert Hex Lock Nuts, 304 Stainless Steel, 150 Pack

ALLWIN #6-32 nylon insert hex lock nuts are listed as 304 stainless steel, with a 150-piece pack for repairs and fastening projects. Their nylon inserts are intended to resist loosening under vibration, while the UNC thread specification helps match the nuts to compatible bolts.

At a glance

Nylon insert is described as reducing loosening under vibration and torque.
#6-32 UNC coarse, right-hand, fully threaded fit for compatible bolts.
Listing claims the nuts are 304 stainless steel and includes a storage box.

Price

$4.19Save 30%

Reference price: ~~$5.99~~

Price checked: Nov 12, 2026

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Pros and cons

Pros

A 150-piece quantity suits repeat repairs or a small parts supply.
Hex form and external hex drive are conventional for wrench access.
Nylon inserts provide a locking feature intended to resist turning.

Technical specifications

16 specifications

Identity
Brand	ALLWIN
Model	locknut-01

Thread and fit
Thread size	#6-32
Thread type	Unified National Coarse
Inside thread size	#6
Thread style	Right Hand
Thread coverage	Fully Threaded
Thread class	UNC

Design and finish
Fastener type	Lock
Head style	Hex
Drive style	External Hex
Exterior finish	Plain

Materials and protection
Material listed	Stainless Steel

Dimensions and pack
Dimensions listed	5.9 x 4.5 x 0.6 inches
Item diameter	0.19 inches
Number of pieces	150

What to know before buying

Listing details to confirm

The listing describes the material as 304 stainless steel in its title and feature copy, while the technical material field says only stainless steel. Confirm the precise grade if 304 is essential. The finish is also described as both Plain and Polished in separate listing fields, so the actual finish is unclear. The title and details identify a 150-pack, while feature text claims a storage box without a formal package inventory.

Who is it for?

A good fit for

People needing #6-32 UNC nylon insert lock nuts for a compatible bolt.
DIYers or repair users who want a multi-piece supply for replacement fasteners.

Less suited to

Buyers whose bolt requires a thread size other than #6-32 UNC.
Projects that require a verified stainless grade or definite surface finish before purchase.

ALLWIN #6-32 Nylon Insert Hex Lock Nuts, 304 Stainless Steel, 150 Pack · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.7 / 5 · 102 ratings

5 stars85%85%
4 stars8%8%
3 stars3%3%
2 stars2%2%
1 star2%2%

Customer feedback describes these as inexpensive jam nuts that work for their intended purpose, with positive mentions of value and functionality. That is relevant for routine #6-32 replacement work, but it does not establish fit for every application or independently confirm the listed material grade and finish. The aggregate ratings are mostly five-star, though a smaller spread of lower ratings means experiences are not uniform.

Positive themes

Customers describe the nuts as good value and say they work for their intended purpose.

Frequently asked questions

What thread size are these lock nuts?

They are listed as #6-32 with Unified National Coarse threads, right-hand style and full thread coverage.

Do these nuts have a nylon insert?

Yes. The feature description says they have a nylon insert intended to reduce loosening under vibration and torque.

Is the material definitely 304 stainless steel?

The title and feature text claim 304 stainless steel, but the technical material field states only stainless steel. Confirm the grade if it is a requirement.

How many nuts are included?

The title and product details specify 150 pieces.