1/4 Hex Washer Head Self Drilling Screws For Roofing Sheet Color Dacromet Fasteners

1/4 Hex Washer Head Self Drilling Screws for Roofing Sheet Color Dacromet Fasteners

Hex washer head roofing screws are made of carbon steel with heat treatment , and hardness ups to HRC 35 , self tapping threads and sharp point for quick drilling roofing .

Washer head design make roofing screws are more easy to be secured and protect threads of screws to be rusted easily by water .

Roofing screws are plated in dacromet and meet RoHS requests on enviromental protection . Some times , roofing screws can be added a EPDM washer under head that diameter is bigger than head of roofing screws for more good proection .

Basic Features

1 . Quick drilling performance

2 . Harden material with good ductility

3 . Recyle use is workable

4 . Longer service with many years .

5 . Not easy to be rusted .

General Technical Data

		Thread	M5
		Head diameter	9.8
		Head height	5.0
		Length	30
		Pitch
Material	Carbon steel	Hardness	35 HRC
Finish	Dacromet	Torque	8.5

Different specifications for different securing thickness when self tapping roofing screws drilling roofing sheet metal .

RFQ

A. Normally one week for custom screws , and we can deliver samples within 24 hours for standard screws or stock once received your request .

Q How many days dispatch goods after placed orders ?

A Generally , one week for popular screws under 2 tons , final delivery is subject to requests on screws , packing and or other deamnds from you .

Q.What are your popular payement menthods ?

A. T/T is our prior choose for all , of course , we are also accept L/C , Westunion , paypall .

Q. What products you produce ?

A. We manufacture various hardwares like fasteners screws , nuts , bolts , pins , rivets and custom metal stamping parts and plastic injeciton molding products .

With many years reputation in hardware filed , VEDALI HARDWARE CO., LTD has entered hardware filed and gained much development in these years , we have over 100 employees and 20 engineers on researching and development , and several branches that are specialized in different hardware for vast demands .

Our product range covers Fasteners ( Screws , Bolts , Nuts , Rivets , Washers , Pins ) , Stamping Parts , Machined Parts , Plastic Injection Molded Parts Which are made of or from different materials for every field in industry , Agriculture and Service . We own advanced process machines and experienced skilled workers to ensure products are manufactured in high quality . We are able to proceed special designs for new projects and provide good solutions to difficult problems during operations , and OEM services are available for us as well .

We carry out ISO management system for our normal managements and put more good management styles based on hommization , efficiency , technicalization according to our actual situations . Our products are sold to the most countries or areas in the world and serve many fields , welcome you to send enquiries to us and looking forward to cooperation .