Complaint
Bolts & Nuts
With the features of durable,high hardness,environmental and anti-corrosion,widely used in decoration,industry,equipment.
Undercut Anchor
Stainless steel undercut anchor is new type anchor bolt,according to the different thickness and hardness of the stone and ceramic plate,choosing the suitable one.
Expansion Bolt
With stainless steel material,widely used in the metal structure,profiles,bearing plate,brackets,beams.
Curtain Wall Fittings
With strong capacity and high corrossion resistance,widely used in stone cladding and glass fixing system.
| Thread specification d | ST2.2 | ST2.9 | ST3.5 | ST4.2 | ST4.8 | ST5.5 | ST6.3 | ST8 | ST9.5 | ||
| P | Thread pitch | 0.8 | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | 2.1 | 2.1 | |
| a | Max | 0.8 | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | 2.1 | 2.1 | |
| dk | Theory | Max | 4.4 | 6.3 | 8.2 | 9.4 | 10.4 | 11.5 | 12.6 | 17.3 | 20 |
| Reality | Max | 3.8 | 5.5 | 7.3 | 8.4 | 9.3 | 10.3 | 11.3 | 15.8 | 18.3 | |
| Min | 3.5 | 5.2 | 6.9 | 8 | 8.9 | 9.9 | 10.9 | 15.4 | 17.8 | ||
| k | Max | 1.1 | 1.7 | 2.35 | 2.6 | 2.8 | 3 | 3.15 | 4.65 | 5.25 | |
| Slot number | 0 | 1 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | ||
| M1 | Type H | Reference | 1.9 | 3.2 | 4.4 | 4.6 | 5.2 | 6.6 | 6.8 | 8.9 | 10 |
| Depth | Type H | Min | 0.9 | 1.7 | 1.9 | 2.1 | 2.7 | 2.8 | 3 | 4 | 5.1 |
| Max | 1.2 | 2.1 | 2.4 | 2.6 | 3.2 | 3.3 | 3.5 | 4.6 | 5.7 | ||
| M2 | Type Z | Reference | 2 | 3.2 | 4.3 | 4.6 | 5.1 | 6.5 | 6.8 | 9 | 10 |
| Depth | Type Z | Min | 0.95 | 1.6 | 1.75 | 2.05 | 2.6 | 2.75 | 3 | 4.15 | 5.2 |
| Max | 1.2 | 2 | 2.2 | 2.5 | 3.05 | 3.2 | 3.45 | 4.6 | 5.65 | ||
| y | Reference | Type C | 2 | 2.6 | 3.2 | 3.7 | 4.3 | 5 | 6 | 7.5 | 8 |
| Type F | 1.6 | 2.1 | 2.5 | 2.8 | 3.2 | 3.6 | 3.6 | 4.2 | 4.2 | ||
