5

I’m trying to search for this screw but cannot find a comparable head shape. I know it’s an Allen/hex, but I’m talking about the overall shape, it’s like a ‘reverse button-head’, or ‘anti-pan head’?
I have searched Amazon and even google images, but that hasn’t been fruitful.

Excuse the sub-par photograph. I think you can see the shape well enough:

enter image description here

Joachim
  • 10,957
  • 5
  • 20
  • 52
Ashley Reid
  • 71
  • 5
  • 1
    They're common on bikes, but I don't know what they're called either – Chris H Sep 11 '19 at 10:09
  • I've been looking and I really can't find a source or name. The closest is a flanged button head. I've seen plenty of unusual curved-head screws on bikes, such as button heads with the same size socket normally used for a cap head – Chris H Sep 11 '19 at 15:58
  • Same! It’s crazy because I’ve seen them on things like bikes like you say. But not to buy as-is. Super annoying! – Ashley Reid Sep 11 '19 at 16:17
  • My last idea is to look at the brand of my old mudguards and see if they're sold as spares, and given a name there. My regular screw suppliers (work) don't do them and more surprisingly I can't find them on ebay – Chris H Sep 11 '19 at 16:38
  • I mean, they are not in McMaster Carr either, which is normally my go to for this kind of question. Good idea, or if I can find them on something being sold currently, give them an email? They might be nice to me? Hehe – Ashley Reid Sep 11 '19 at 16:41
  • The ones I've got were fitted to my genesis bike when I bought it new. On an unrelated issue they weren't very helpful – Chris H Sep 11 '19 at 16:51
  • I've found a product photo with them in, a spares kit for Norco suspension. I've come to suspect that as they're functionally the same as flanged buttonheads, the difference is one of styling and there may be no standard term. I haven't exactly given up but I've run out of idea for now (no branding on the surviving bits of my old back mudguard) – Chris H Sep 12 '19 at 12:51

2 Answers2

2

Taper Head Bolt seems to be the most technical way I can find it referred as. As common, "Water Bottle Cage Bolts" is used.


Taper cap bolt Taper cap bolt


M5x12mm Titanium Hex Key Washer Taper Head Bolt Bike MTB Water Bottle Cage Screw M5x12mm Titanium Hex Key Washer Taper Head Bolt Bike MTB Water Bottle Cage Screw


MCTi Mountain MTB Bike Water Bottle Cage Titanium Allen Hex Tapered Head Bolts Screw M5x12mm Washer Head 4 Packed Colorful MCTi Mountain MTB Bike Water Bottle Cage Titanium Allen Hex Tapered Head Bolts Screw M5x12mm Washer Head 4 Packed Colorful


Bolts & Fasteners 6pcs Titanium Ti Rainbow M5x20 Bolts Allen Hex Tapered Head Screw Bolts & Fasteners 6pcs Titanium Ti Rainbow M5x20 Bolts Allen Hex Tapered Head Screw


Precision Anodized Water Bottle Cage Bolts Precision Anodized Water Bottle Cage Bolts


Titanium M5x12mm with Washers Bicycle Water Bottle Cage Hex Bolts Pack of 4 Titanium M5x12mm with Washers Bicycle Water Bottle Cage Hex Bolts Pack of 4


Alloy Water Bottle Cage Bolts Alloy Water Bottle Cage Bolts

UnhandledExcepSean
  • 143
  • 6
1

Looks similar to this bicycle bolt.

M5 Black Anodized Bolt Description: Tapered socket head with 4mm broach M5 diameter bolt, 0.8mm thread pitch

Andrew Richmond
  • 178
  • 6