CSN 021226 - Hex tapping screws B = with cylinder head and slot
Current norm: DIN 7513
Equivalent norms: DIN 7513 B;
Current norm: DIN 7513
| Company | City | Country | Company profile |
|---|---|---|---|
| TOP LUSAVOUGA - Hardware and Tools | Cacia | Portugal | See Detail |
| TOP Lectoe Engineering 秘密研究所 Ltd | Wolverhampton | United Kingdom | See Detail |
| TOP Jiaxing Haina Fastener Co.,Limited | JIAXING | China | See Detail |
| TOP Shanghai Tengri Metal Products Co., Ltd | Shanghai | China | See Detail |
| TOP Hanshin Neji Co.,Ltd. | Osaka | Japan | See Detail |
| TOP Maruti Metal Industries | Jamnagar | India | See Detail |
| MELICHAR CZ s.r.o. | 脷辫颈肠别 | Czech Republic | |
| MAGNI EUROPE GMBH & CO. KG | Schorndorf | Germany | |
| G T C Fixings | Eastleigh | United Kingdom | |
| M&M Turned Parts Ltd | Redditch | United Kingdom |
Legend:
l - length of bolt
d - the nominal diameter of the thread
k - head height
n - groove width
t - groove depth
dk - head diameter
Makings:
Steel: 450 HV0,3
Stainless: -
Plastic: -
Non Ferrous: -
Thread: 6h
Notes:
-
Table according to DIN 7513:
dimensions in mm
| Thread size d |
M2,5 | M3 | M4 | M5 | M6 | M8 | |
| dk | nominal = max. | 4,5 | 5,5 | 7 | 8,5 | 10 | 13 |
| min. | 4,32 | 5,32 | 6,78 | 8,26 | 9,78 | 12,73 | |
| da | max. | 3,1 | 3,6 | 4,7 | 5,7 | 6,8 | 9,2 |
| k | nominal = max. | 1,6 | 2 | 2,6 | 3,3 | 3,9 | 5 |
| min. | 1,46 | 1,86 | 2,46 | 3,12 | 3,6 | 4,7 | |
| n | nominal | 0,6 | 0,8 | 1,2 | 1,2 | 1,6 | 2 |
| min. | 0,66 | 0,86 | 1,26 | 1,26 | 1,66 | 2,06 | |
| max. | 0,8 | 1 | 1,51 | 1,51 | 1,91 | 2,31 | |
| r | min. | 0,1 | 0,1 | 0,2 | 0,2 | 0,25 | 0,4 |
| t | min. | 0,7 | 0,85 | 1,1 | 1,3 | 1,6 | 2 |
| w | min. | 0,56 | 0,76 | 1,06 | 1,52 | 1,6 | 2,2 |
| case depth | min. | 0,04 | 0,05 | 0,1 | 0,1 | 0,15 | 0,15 |
| max. | 0,12 | 0,18 | 0,25 | 0,25 | 0,28 | 0,28 | |
| l | Commercial lenght range | ||||||
| 6 | + | + | |||||
| 8 | + | + | + | ||||
| 10 | + | + | + | + | |||
| 12 | + | + | + | + | + | ||
| (14) | + | + | + | + | + | + | |
| 16 | + | + | + | + | + | + | |
| (18) | + | + | + | + | + | + | |
| 20 | + | + | + | + | + | + | |
| (22) | + | + | + | + | + | ||
| 25 | + | + | + | + | |||
| 30 | + | + | + | ||||
| 35 | + | + | |||||
| 40 | + | ||||||
| Core hole diameter |
M3,5 | M3 | M4 | M5 | M6 | M8 | |
| dh | H11 | 2,2 | 2,7 | 3,6 | 4,5 | 5,5 | 7,4 |