50-Piece M8 Stainless Bolt Kit by Hapric

Screw & Bolt Kits

50-Piece M8 Stainless Bolt Kit

$9.99

★★★★★ 4.7 out of 5 · 1,093 ratings

M8 is where a lost bolt stops a whole weekend: trailer hitch plates, gate hinges, grill carts. Twenty 304 stainless socket-head bolts in six lengths from 16 to 50 mm, ten nuts and twenty flat washers, in a case small enough to live in the truck.

20 bolts (M8 x 16, 20, 25, 30, 40, 50 mm), 10 nuts, 20 flat washers
304 stainless steel, no coating to peel, no odor
Thread error under 0.01 mm
Compact labeled divider case; hex key not included, use a 6 mm key

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

Specifications
Material	304 stainless steel
Pieces	50
Sizes	M8 x 16 to 50 mm (6 lengths)
Included	Labeled case

Reaches for it

Gates, hinges and outdoor framesGrill and smoker cartsTrailer and rack hardware

What is in the case

Kit contents by size
M8 × 16 / 20 / 25 / 30 mm	4 each
M8 × 40 / 50 mm	2 each
M8 hex nuts	10
M8 flat washers	20

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

★★★★★

Budget Priced Product, with Premium Experience

Premium Product -outstanding experience. As an expert hobbyist and tinkerer I have experienced a range of qualities with these small miscellaneous screw sets. But this DID NOT DISAPPOINT! Each Complete with its own driver and tweezer. Each denomination of cap-screw packaged neatly in its own plastic bag ensuring proper count and sorting. Also the plastic container is premium quality and not made of the flimsy flexible plastic. Thicker than normal plastic shell with Solid hinges and rigid latch ensures no flex or spillage while handling the small screws inside. They also stack nice and evenly flat. I bought the M2 andM3 sets and I’m going back to purchase the other sets up to M8 because I’m so very impressed and satisfied

Kevin Wojtek · September 3, 2026

★★★★★

Perfect machine screws, great price

These M3 screw kits have been working out great for me in my daily projects. The black galvanizing technology makes sure they look clean and professional, which is always a plus when you're trying to impress clients or colleagues (or just want your work to look neat). I especially love the fact that there are seven different lengths included - it means I don't have to worry about running out of the right size in the middle of a project. The set also comes with plenty of washers and nuts, so you won't run out while working on something important (I hate when that happens). The box itself is really well-organized too, which makes it easy to find what you need quickly. It even has internal and external labels marking the corresponding screw size and quantity - talk about attention to detail! I haven't had any issues with these screws loosening up either, so they seem to be pretty reliable as well. Overall, I'm really happy with this purchase (I got them on sale at a local hardware store for like $15 or something).

ryross · October 7, 2025

At the counter