1 x Chipboard Screw Tekor Countersunk Head With Serration 4.5X70 Thread Length: 42 T25 Zinc Plated cut Type 17

Securing 22mm OSB boards following the replacement of an old floor in an apartment. OSB boards measuring 1.2m x 2.4m, spaced 25cm apart with screws across the width (starting 10cm from the edges, i.e., 5 screws per width), spaced approximately 45cm apart between joists. Allow 30 screws per OSB board (check the spacing between your joists).

Reinforcement of fixed joists under trusses 30x60 joists

I need 800 high-quality Tekor Torx self-tapping screws to screw OSB 22 boards onto a wooden floor. I've always been very satisfied with Tekor brand screws.

Fixing climbing holds in a commercial climbing gym. Holds made of PU or GRP on plywood walls.

Ladder manufacturing. Miller's ladder for roof cleaning.