Poly-Well™_Self-Drilling-Screw

Poly-To-Steel-Fixing Heavy-Duty Roofing Screw

Hex Flange Head Partial Thread #5 Point Self-Drilling Roofing Screw. Suitable for External Heavy Duty Polycarbonate-To-Steel applications. Usually for fixing poly-skylight to thick structural steel or bar joists. The unique Wings Design helps trim and tidy up the drilling hole of the poly-skylight to reduce the risk of damaging the dome washer and further ensure the proper installation and water-seal performance.

SPECIFICATION
MATERIAL  Carbon Steel C1022
HEAD  Hex Flange Head (w/ Undercut)
RECESS  Indent Hex 
THREAD  Partial Coarse Thread (Type BSD) w/ Wings
POINT  No. 5 Small-Lightning Point
 (More Available)
FINISH  Light Silver-Blue Ruspert - SST 1000 hrs  
 (More Available)
WASHER  MW Dome EPDM Washer
 (More Available)
SIZE  #14 (≒ M6.3)
LENGTH  110mm (More Available)
DRILLING  6.0mm ~ 12.0mm Steel
ADAPTER  MW Magnetic Hex Socket (5/16")