Telephone 01202 478899
Facsimile 01202 474222
sales@nutsaboutbolts.org
We supply square square hex in grades 4.6 & 8.8. We can also supply in stainless steel and most non ferrous materials as specials.
Dimensions for BS7419 square square hex holding down bolt.
| Diameter |
Width of square head |
Depth of square head |
Thread Length |
| M12 |
19mm |
8mm |
112mm |
| M16 |
24mm |
10mm |
116mm |
| M20 |
30mm |
12.5mm |
120mm |
| M22 |
32mm |
14mm |
122mm |
| M24 |
36mm |
15mm |
124mm |
| M27 |
41mm |
17mm |
127mm |
| M30 |
46mm |
18.7mm |
130mm |
| M33 |
50mm |
21mm |
133mm |
| M36 |
55mm |
22.5mm |
136mm |
| M39 |
60mm |
25mm |
139mm |
| M42 |
65mm |
26mm |
142mm |
| M45 |
70mm |
28mm |
145mm |
| M48 |
75mm |
30mm |
148mm |
