Specifically designed to attach wood to metal (Max. 12mm). Metric thread with wings designed to ream out the timber, so the screw can achieve Max. R.P.M. without burning out. When the wings hit the metal they will break off to permit the thread to self-tap into the metal.
WingTip Screw SDRILL No4 BIMET

WingTip Screw SDRILL No4 BIMET - 5.5 x 85 (Box 100)

SKU: BMHW85
£70.85 inc. VAT
£85.16 Sale £70.85 inc. VAT
Description

TIMCO Self-Drilling Wing-Tip Steel to Timber Heavy Section A2 Stainless Steel Bi-Metal Screws - 5.5 x 85

Specifically designed to attach wood to metal (Max. 12mm). Metric thread with wings designed to ream out the timber, so the screw can achieve Max. R.P.M. without burning out. When the wings hit the metal they will break off to permit the thread to self-tap into the metal.

Hardened carbon steel drill tip fused on to an A2-304 Austenitic Stainless Steel body

Pack Quantity 100
Product Code BMHW85
Description Specifically designed to attach wood to metal (Max. 12mm). Metric thread with wings designed to ream out the timber, so the screw can achieve Max. R.P.M. without burning out. When the wings hit the metal they will break off to permit the thread to self-tap into the metal.
Pack Type Box
SKU Barcode 5055893352236
To Suit Timber mm 30 - 49
Pack Quantity Unit Pieces
Recess Type Phillips
Finish Exterior (Silver Organic)
Substrates Steel, Timber
Rec RPM 1,000 - 1,800
Material Bi-Metal/A2-304 Stainless Steel/Carbon Steel
Corrosion Rating 4 - Urban & industrial areas with a moderate salt atmosphere
Length mm 85
Size mm 5.5 x 85
Head Type Countersunk with Ribs
Driver Bit Size PH3
Point Type Self-Drilling No.5
Thread Type Metric, *P/T = Partially Threaded
Effective Thread Length mm 45 *P/T
Thread Dia. mm 5.5
Carton Qty pcs 1600
Carton Qty Packs 16
Max Drilling Thickness mm 12
Drill Tip Length mm 21
Head Height mm 3
Type For Timber to Heavy Section Steel
Head Dia. mm 10.5
Max Fixture Thickness mm 57
Pack Weight kg 1.175
Pack Dimensions L x W x H mm 135 x 90 x 90
Thread Coverage Fully Threaded