Metalsuberg 540-Piece SAE Hex Bolt, Locknut and Washer Kit

Metalsuberg’s 540-piece SAE hex bolt, nylon locknut and washer assortment combines five nominal thread diameters with several bolt lengths in a compact kit. The listed contents total 180 bolt, nut and washer sets, aimed at repairs and projects that need multiple SAE sizes on hand.

At a glance

The package breakdown describes five SAE thread sizes, with different quantities for each size.
Each listed set pairs a hex bolt with a nylon locknut and a large washer.
The listing describes alloy steel with a Grade 5 rating and color-galvanized finish.
The manufacturer claims compliance with several fastener and surface-treatment standards. These are listing claims, not independent verification.

Price

$36.49Save 50%

Reference price: ~~$72.99~~

Price checked: Nov 14, 2026

View offer Ahead of Black FridayExplore the selection

Often bought together

Metalsuberg 1/2" x 6" Hex Head Bolt by Color Galvanization with Nylon Lock nut and Large Size Washer Assortment Kit,Alloy Steel,Grade 5.(4pcs Pack)

$18.99

3/8" x 1-3/4" Hex Head Bolt by Color Galvanization with Nylon Lock nut and Large Size Washer Assortment Kit,Alloy Steel,Grade 5.(8pcs Pack),by Metalsuberg.

$13.99

Pros and cons

Pros

A stated 180 matched sets provide bolts, nylon locknuts and washers together.
Five thread sizes and bolt lengths from 1/2 to 2 inches give a range for assorted SAE repair and DIY tasks.
The claimed PP plastic box and foam protection are intended to keep the assorted parts organized.

Cons

The size assortment is limited to the five SAE thread diameters listed, so it will not cover metric or other thread sizes.

Technical specifications

15 specifications

Identity and quantity
Brand	Metalsuberg
Piece count	540
Set count	180
Size range listed	23 size 1/4"-1/2"

Dimensions and installation
Dimensions listed	2 x 2 x 0.25 inches
Weight listed	106.85 g
Bolt lengths in package details	1/2" to 2"

Materials and protection
Material listed	Alloy Steel
Grade rating	Grade 5
Finish	Color Galvanized
Color	Yellow

Fastener details
Head style	Hex
Thread sizes	1/4"-20; 5/16"-18; 3/8"-16; 7/16"-14; 1/2"-13
Locknut type	Nylon locknut
Washer type	Large washer

What to know before buying

Listing details to confirm

The listing details are inconsistent: it calls the assortment 23 sizes, while the package breakdown lists five thread diameters and several lengths. The listed 7/16"-14 thread size conflicts with the separate 7/16"-14 item-thread field only in how it is presented as a single specification, and the 0.25-inch item diameter and outside diameter do not clearly describe the full assortment. Confirm the exact size and length mix for the selected listing before purchase.

Who is it for?

A good fit for

Automotive, machinery and fixture repairs that use one of the listed SAE thread sizes.
DIYers who want matched bolts, nylon locknuts and washers in several lengths.
Workshops needing a small assortment for occasional replacement and assembly tasks.

Less suited to

Projects that require metric fasteners or thread sizes outside the five listed.
Buyers who need a clearly itemized, independently confirmed size breakdown before ordering.

Metalsuberg 540-Piece SAE Hex Bolt, Locknut and Washer Kit · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 23 ratings

5 stars65%65%
4 stars24%24%
3 stars11%11%
2 stars0%0%
1 star0%0%

Aggregate customer ratings lean positive, with most ratings in the four- or five-star categories and some in the three-star category. That offers a limited indication of buyer reception, but no customer comments are supplied to explain the ratings or assess fit, finish or assortment accuracy. Buyers should rely on the size and package details when deciding whether the kit suits their repair needs.

Frequently asked questions

What fasteners are included?

The package description lists hex bolts, nylon locknuts and large washers, totaling 540 pieces or 180 matched sets.

Which thread sizes are listed?

The package breakdown names 1/4"-20, 5/16"-18, 3/8"-16, 7/16"-14 and 1/2"-13. The listing also describes 23 sizes, so confirm the detailed assortment for the selected listing.

What bolt lengths are included?

The listing gives an overall length range of 1/2" to 2" and provides size-specific ranges in the package breakdown.

Is the steel and finish independently verified?

No independent verification is supplied. Alloy steel, Grade 5 and color galvanization are manufacturer/listing claims.