384-Piece Flange Bolt Kit, M6 M8 M10 by Hapric

384-Piece Flange Bolt Kit, M6 M8 M10, view 2

384-Piece Flange Bolt Kit, M6 M8 M10, view 3

384-Piece Flange Bolt Kit, M6 M8 M10, view 4

Screw & Bolt Kits

384-Piece Flange Bolt Kit, M6 M8 M10

$18.99$20.99save 10%

★★★★★ 4.7 out of 5 · 1,093 ratings

Flange bolts carry their own washer under the head, which is why motorcycles and mowers are full of them. We sort 8.8-grade black-oxide bolts in eleven sizes from M6 x 12 to M10 x 30 with a flange nut, a flat washer and a lock washer for each, 384 pieces in a deep-divider case.

M6 x 12/16/20/25/30, M8 x 16/20/25/30, M10 x 25/30 with matching flange nuts and washers
8.8-grade alloy steel, black oxide, high tensile strength
Flange head spreads the load and resists vibration loosening
Extra-large fixed dividers labeled inside and out

Shop 384-Piece Flange Bolt Kit, M6 M8 M10

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

Specifications
Material	8.8 alloy steel, black oxide
Pieces	384
Sizes	M6, M8, M10 (11 sizes)
Included	Flange nuts, flat and lock washers, labeled case

Reaches for it

Motorcycle and ATV maintenanceMower and small-engine coversMechanical assembly

What is in the case

Kit contents by size
M6 × 12 / 16 / 20 / 25 / 30 mm flange bolts	with flange nut, flat and lock washer each
M8 × 16 / 20 / 25 / 30 mm	with flange nut, flat and lock washer each
M10 × 25 / 30 mm	with flange nut, flat and lock washer each
Total	384 pieces, 11 sizes

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

★★★★★

Good

The tweezers sucked, but all the screws. Never backed out or stripped on me, and all the allens seemed good, this is worth the price, im planning on getting it again

W21 · October 4, 2026

★★★★★

Well made and well packaged

I use these assorted metric screws in my 3D printed pieces and they work well and look good. I am quite happy with this purchase and would not hesitate to purchase other sizes if and when the need arises.

Stafford White · July 14, 2026

At the counter

Questions about this kit

What is a flange bolt for?

The built-in flange under the head spreads the load like a washer and resists loosening under vibration, which is why motorcycle fairings and mower decks use them.

Is 8.8 strong enough?

8.8 is the automotive standard grade, about 800 MPa tensile; it is the right class for covers, brackets and mounts.

Same shelf