Introduction
Button Head Screw As per Din 7380
A button head is a type of screw or bolt that has a round, flat head with a small, cylindrical protrusion on the top. It is designed to be used with a button head socket, which is a type of tool used to tighten or loosen the screw or bolt. Button head screws and bolts are often used in applications where a low profile or sleek appearance is desired, as the head of the fastener is relatively small and flush with the surface. They can also be used in situations where there is not enough clearance for a larger fastener head. Some common applications for button head screws and bolts include electronics, automotive, and machinery.
Dimensions
| Button Head Screw As per Din 7380 | ||||||||||
| DIAMETER (d) | 3 x 0.5 P | 4 x 0.7 P | 5 x 0.8 P | 6 x 1 p | 8 x 1.25 P | 10 x 1.5 P | 12 x 1.75 | 16 x 2 P | ||
| HEAD DIAMETER (D) | Min | 5.40 | 7.24 | 9.14 | 10.07 | 13.57 | 17.07 | 20.48 | 27.48 | |
| Max | 5.70 | 7.60 | 9.50 | 10.50 | 14.00 | 17.50 | 21.00 | 28.00 | ||
| HEAD THICKNESS (h) | Min | 1.40 | 1.95 | 2.50 | 3.00 | 4.10 | 5.20 | 6.24 | 8.44 | |
| Max | 1.65 | 2.20 | 2.75 | 3.30 | 4.40 | 5.50 | 6.60 | 8.80 | ||
| SOCKET ACROSS FLAT (S) | Nom | 2.00 | 2.50 | 3.00 | 4.00 | 5.00 | 6.00 | 8.00 | 10.00 | |
| Min | 2.02 | 2.52 | 3.02 | 4.02 | 5.02 | 6.02 | 8.03 | 10.03 | ||
| Max | 2.08 | 2.58 | 3.08 | 4.10 | 5.14 | 6.14 | 8.18 | 10.18 | ||
| SOCKET CORNER FLAT (e) | Min | 2.30 | 2.87 | 3.44 | 4.58 | 5.72 | 6.86 | 9.15 | 11.43 | |
| SOCKET DEPTH (t) | Min | 1.04 | 1.30 | 1.56 | 2.08 | 2.60 | 3.12 | 4.16 | 5.20 | |
| Length | Min | Max | ||||||||
| 16 | 15.10 | 16.90 | BTN03016 | BTN04016 | BTN05016 | BTN06016 | BTN08016 | BTN10016 | BTN12016 | |
| 20 | 18.95 | 21.05 | BTN03020 | BTN04020 | BTN05020 | BTN06020 | BTN08020 | BTN10020 | BTN12020 | |
| 25 | 23.95 | 26.05 | BTN03025 | BTN04025 | BTN05025 | BTN06025 | BTN08025 | BTN10025 | BTN12025 | BTN16025 |
| 30 | 28.95 | 31.05 | BTN03030 | BTN04030 | BTN05030 | BTN06030 | BTN08030 | BTN10030 | BTN12030 | BTN16030 |
| 35 | 33.75 | 36.25 | BTN03035 | BTN04045 | BTN05035 | BTN06035 | BTN08035 | BTN10035 | BTN12035 | BTN16035 |
| 40 | 38.75 | 41.25 | BTN03040 | BTN04040 | BTN05040 | BTN06040 | BTN08040 | BTN10040 | BTN12040 | BTN16040 |
| 45 | 43.75 | 46.25 | BTN03045 | BTN04045 | BTN05045 | BTN06045 | BTN08045 | BTN10045 | BTN12045 | BTN16045 |
| 50 | 48.75 | 51.25 | BTN03050 | BTN04050 | BTN05050 | BTN06050 | BTN08050 | BTN10050 | BTN12050 | BTN16050 |
| 55 | 53.50 | 56.50 | BTN03055 | BTN04055 | BTN05055 | BTN06055 | BTN08055 | BTN10055 | BTN12055 | BTN16055 |
| 60 | 58.50 | 61.50 | BTN04060 | BTN05060 | BTN06060 | BTN08060 | BTN10060 | BTN12060 | BTN16060 | |
| 65 | 63.50 | 66.50 | BTN04065 | BTN06065 | BTN08065 | BTN10065 | BTN12065 | BTN16065 | ||
| 70 | 68.50 | 71.50 | BTN06070 | BTN08070 | BTN10070 | BTN12070 | BTN16070 | |||
| 80 | 78.50 | 81.50 | BTN06080 | BTN08080 | BTN10080 | BTN12080 | BTN16080 | |||
| 90 | 88.25 | 91.75 | BTN06090 | BTN08090 | BTN10090 | BTN12090 | BTN16090 | |||
| 100 | 98.25 | 101.75 | BTN06100 | BTN08100 | BTN10100 | BTN12100 | BTN16100 | |||
| 110 | 108.25 | 111.75 | BTN06110 | BTN08110 | BTN10110 | BTN12110 | BTN16110 | |||