Flat Head/ Countersunk Socket Screws (Metric) are manufactured to DIN 7991 Made of high-grade alloy steel Grade 12.9 Available in plain and Zinc finish (RoHS Compliant).
Flat Head/ Countersunk Socket Screws (Metric) are manufactured to DIN 7991 Made of high-grade alloy steel Grade 12.9 Available in plain and Zinc finish (RoHS Compliant).
Flat Head/ Countersunk Socket Screws (Metric) are manufactured to DIN 7991 Made of high-grade alloy steel Grade 12.9 Available in plain and Zinc finish (RoHS Compliant).
Flat Head/ Countersunk Socket Screws (Metric) are manufactured to DIN 7991 Made of high-grade alloy steel Grade 12.9 Available in plain and Zinc finish (RoHS Compliant).
Last updated at 03/21/2026 14:55:57
M5 x 0.80p x 40mm Part Thread Metric Coarse Countersunk Head Socket Screw Class 12.9 (3mm Key) Plain Black Uncoated DIN 7991
Free delivery between Tue – Thu
Qty 20 Countersunk Head Socket M5 (5mm) X 40mm Plain Screw Flat Bolt
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Hobsons - M5 x 40 Plain Din 7991 / Class 012.9 Socket Screw Countersunk Hex | Km5/40 (Pack Of 100)
Delivery between 23–31 Mar $7.95
originally posted on ebay.com
These are incredibly strong, yet light. Perfectly cut threads and a beautiful consistent finish. I use these on my custom built guitars where nothing but the best quality makes it on a build. Hex heads are closer tolerance than anything I've found out there. So snug. I won't use anything else. Just buy them.
originally posted on ebay.com
Grate made product that holds up to heavy applications which I required and they worked out very well.
originally posted on ebay.com
Nicely finished screws with crisp threads and made with high grade steel.
| Fastener Size | M5 |
| Fastener Length | 40 mm |
| Pitch (mm) | 0.8 |
| Thread Length (mm) | 16 |
| Thread Profile | Coarse |
M5 x 0.80p x 40mm Part Thread Metric Coarse Countersunk Head Socket Screw Class 12.9 (3mm Key) Plain Black Uncoated DIN 7991
Free delivery between Tue – Thu
Qty 20 Countersunk Head Socket M5 (5mm) X 40mm Plain Screw Flat Bolt
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Hobsons - M5 x 40 Plain Din 7991 / Class 012.9 Socket Screw Countersunk Hex | Km5/40 (Pack Of 100)
Delivery between 23–31 Mar $7.95
These are incredibly strong, yet light. Perfectly cut threads and a beautiful consistent finish. I use these on my custom built guitars where nothing but the best quality makes it on a build. Hex heads are closer tolerance than anything I've found out there. So snug. I won't use anything else. Just buy them.
Grate made product that holds up to heavy applications which I required and they worked out very well.
Nicely finished screws with crisp threads and made with high grade steel.
All I can say is that this is the product I as looking for , and it works ,. already used on an application and it dose the job
works as it was expected.
High quality, nice tight allen key socket unlike many others
good
it fits a new toyota tailgate and it is exactly what it looks like.................its a screw!!! yay
| Fastener Size | M5 |
| Fastener Length | 40 mm |
| Pitch (mm) | 0.8 |
| Thread Length (mm) | 16 |
| Thread Profile | Coarse |
