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Self-dilling Screw with EPDM Washer

Material: C1022
Coating: Zinc plating, Yellow zinc, Dacromet, Ruspert
Standard: DIN7504K, ISO3355
Head: Hex Washer Head

Category:

Screw Series

E-mail:

info@hfastfix.com

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Description

Self-drilling screws with EPDM washers are a type of fastener that combines the functionality of a screw and a drill bit. They have a sharp point that can pierce through metal, wood, or other materials, eliminating the need for pre-drilling. The EPDM washer, which is bonded to the head of the screw, provides a watertight seal, preventing leaks and protecting the underlying material from corrosion.

Features

★ Saves time and labor: Eliminates the need for pre-drilling, which can significantly speed up the installation process.
★ Improves weather resistance: The EPDM washer creates a watertight seal, which is especially important for outdoor applications.
★ Prevents corrosion: The EPDM washer protects the underlying material from corrosion, which can extend the lifespan of the fastener.
★ Reduces noise: The EPDM washer helps to dampen noise when the screw is driven in.

Dimensions (d*L)mm

6#	7#	8#	10#	12#	14#
3.5*10	3.9*10	4.2*13	4.8*13	5.5*19	6.3*25
3.5*13	3.9*13	4.2*16	4.8*16	5.5*25	6.3*32
3.5*19	3.9*16	4.2*19	4.8*19	5.5*32	6.3*38
3.5*25	3.9*19	4.2*25	4.8*25	5.5*38	6.3*50
3.5*32	3.9*25	4.2*32	4.8*32	5.5*50	6.3*75
	3.9*32	4.2*38	4.8*38	5.5*63	6.3*80
	3.9*38	4.2*50	4.8*50	5.5*75	6.3*100
				5.5*95	6.3*110
				5.5*100	6.3*120
					6.3*130
					6.3*140
					6.3*150

Technical Data

Material: C1022
Coating: Zinc plating, Yellow zinc, Dacromet, Ruspert
Standard: DIN7504K, ISO3355
Head: Hex Washer Head

Item	3.5	3.9	4.2	4.8	5.5	6.3
Torsional Strength (kg/cm)	24 min	28 min	42 min	61 min	92 min	150 min
Case Hardness (Hv/0.3kg)	560-730	560-730	560-730	560-730	560-730	560-730
Drilling Time (sec)	4	4	5	7	11	13
Drilling Thickness	1+1	1+1	1.5+1.5	2+2	2+3	2+3

Production scene

Wire darwing

Anealing

Heading

Pinch pointing

Threading

Heat treatment

Cotating

Packing

About our company

Hebei Hengcheng Fastener Co., Ltd is a National High-tech Enterprise, established in Hebei Yongnian in 1998, specializing in the production and sales of fasteners including Nuts, Bolts, Drop in anchor, Strong anchor, Self-drilling screw, Self-tapping screw, Drywall screw and Customized cold forging parts. The company covers an area of 70,000 square meters with about 150 staff at present, and among which there are over 30 senior technicians and 30 salesmen. To guarantee the quality, the company applies the world-advanced facilities for production including machines of cold forging,hot forging, threading,wire drawing,annealing,heat treatment and other ancillary equipment. With more than 20 years’ development, the company becomes one of the largest manufacturing enterprises in the fastener industry of North China.

The company has passed the ISO9001:2015 international quality system certification, the trade mark “HF” is honored “Well-Known Trade Mark of Hebei Province”, meanwhile, the product is honored “Famous-Brand Product” by the Authority. The company is an export-oriented enterprise and the products are exported to more than 80 countries and regions, such as South Korea, Japan, America, Southeast Asia, Middle East and Africa and enjoyed a good reputation among customers. The company is dedicated to supply the best products and services to customers and would like to express sincere invitation to friends from all over the world.

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