BSL® T-bolt is a bolt used for fastening sheet metal with grooves. The flat square flange has a rotation-stopping effect during installation.
T-bolts are mainly used for fastening connections of automobile bodies and anti-collision beams, and are generally used in combination with pads or foam.
SL® T-bolts are available in single type, combined type, etc. according to the number of structural components.
Table 1 Dimensions
unit：mm
| Product Code | D | L | k | C | h |
| Nominal | Nominal | Nominal | refer to | refer to | |
| B4050-D-060160 | M6 | 16 | 2.5 | 10 | 2～4 |
| Nominal thread specificationD
（mm） |
hardness
（HV） |
Thread load protection(N)
Min |
| M6 | 250～320 | 11600 |
T-bolt materials, surface treatment types, and product functions are as follows:
| type | Material | Surface treatment | Performance level |
| T-bolts-single type
B4050 |
steel：10B21 | Dacromet black
Salt spray 168H no substrate corrosion |
8.8class |
| T-bolt-combination type
B4051 |
steel：SWCH35K，45# | Zinc-nickel alloy
Salt spray 720H no substrate corrosion |
8.8class |
The bolts are installed manually by inserting them into the round holes (or slots) of the two layers of sheet metal to position them, screwing in the nuts, and then tightening them with a torque wrench.
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