REFABO 17034/5 RP-7K-P Plus Sandwich Drilling Screw 5.5 x 185 / Sealing Washer 22 mm Bi-Metal A2, Stainless Steel, 5.5 x 185

• Sandwich drill screw, hexagonal head (SW 8) with pressed EPDM sealing washer. Material: bimetal (stainless steel A2/steel), Rustpert
• Clamping range (mm): 90-156
• Drilling capacity: 1.5 - 5.25 mm
• Coating with high sliding action to reduce screw-in torque
• Permanently tight, as the upper shell is pulled under the sealing disc by the two-way underhead thread

Sandwich drill screw, hexagonal head with pressed disc made of bimetal (stainless steel A2/steel), RUSPERT®. Areas of application: fixing sandwich profiles on steel. Product advantages: suitable for mounting on standard coupling purlins. 7mm threadless part behind the drill bit prevents forced feed caused by construction tolerances. Two-way under-head thread prevents dents during installation. Coating with high sliding action to reduce screw-in torque. Permanently tight, as the upper shell is pulled under the sealing disc by the two-way underhead thread. Also in conjunction with calottes. Technical data: material: bi-metal (stainless steel A2/steel), seal material: stainless steel A2/EPDM