500-Piece Metric + SAE Set Screw Kit, 12.9 by Hapric

500-Piece Metric + SAE Set Screw Kit, 12.9, view 2

500-Piece Metric + SAE Set Screw Kit, 12.9, view 3

500-Piece Metric + SAE Set Screw Kit, 12.9, view 4

Set Screws

500-Piece Metric + SAE Set Screw Kit, 12.9

$8.99

★★★★★ 4.7 out of 5 · 445 ratings

Half the fixtures in an American house are inch-thread and half are metric, so this case carries both: 25 sizes from 1/8-40 to 5/16-18 and M3 to M8, 500 black 12.9 alloy cup-point screws, each size sealed in its own bag. The deadbolt, the towel bar and the mixer collar are all in here.

25 sizes, metric M3 to M8 plus SAE 1/8-40 to 5/16-18
12.9 alloy steel with black zinc, polished hex socket that takes torque
Every size in a sealed, labeled bag inside the divider case
Hex keys included

Shop 500-Piece Metric + SAE Set Screw Kit, 12.9

Price and stock are shown on the partner store page that opens from the button.

Specifications
Material	12.9 alloy steel, black zinc
Pieces	500
Sizes	25 (metric + SAE)
Included	Hex keys, labeled case

Reaches for it

Deadbolts and door hardwareBathroom fixturesCameras and precision gear

What is in the case

Kit contents by size
Metric: M3 × 3 / 4 / 5 / 6 / 8, M4 × 4 / 6 / 8, M5 × 5 / 8, M6 × 6 / 10, M8 × 8	20 each
SAE: 1/8-40 × 1/8, 5/32, 1/4, 5/16	20 each
SAE: 5/32-32 × 3/16, 1/4, 5/16	20 each
SAE: 3/16-24 × 3/16, 5/16	20 each
SAE: 1/4-20 × 1/4, 3/8 and 5/16-18 × 5/16	20 each
Hex keys (metric + SAE) + tweezers	2 sets + 1

Labeled inside and on the lid, thick fixed dividers, threads cut to the metric standard. Returns and replacements run through the order page of the partner store.

From the case

What buyers wrote about this kit

★★★★★

A good buy!

This 500-piece metric and SAE screw assortment is a great kit to keep in the shop or garage. It comes with a wide range of commonly used sizes, so it’s easy to find the right screw for repairs, DIY projects, or equipment maintenance. The screws feel strong and well-made, and the threads are clean and consistent, making them easy to install without stripping. Many kits like this include sizes ranging from metric M3–M8 and standard sizes like 1/8-40 up to 5/16-18, which covers a lot of everyday applications.

Joshua Lopez · March 4, 2026

★★★★★

Great set to fix anything

Every DIY dad needs this set. I've been able to fix door levers, towel holders, etc all very quickly and easily with this. One thing I will say is maybe get some loctite to add a drop of it to these set screws. But this set has come in handy more than once.

Matt Evans · August 14, 2026

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