China Custom Stainless Steel Flange Hex Head Self Drilling Screw Metal SS304 SS316 Hexagon Self Tapping Screws with EPDM Washer

• Customization: Available
• Material: Stainless Steel
• Shape of Head: Hexagon
• Model NO.: DIN7054
• Surface Finishing: Zinc Plated
• Certification: ISO, GS, RoHS, CE
• Customized: Customized
• Quality: 100% Tested
• Sample: Available
• Package: Standard Package or Customer's Packing
• Box: Customer's Brand Box/Plain Box
• Shipment: by Sea / Truck / Plane / Express
• MOQ: Can Be Negotiated
• Online Service: 24 Hours Online
• OEM/ODM: Available
• Thread: Unc, Unf, Un, Metric Coarse, Fine
• Surface: Plain, Zinc Plated (Blue, White, Black, Yellow), N
• Price: Factory Price
• Head: Flange Hexagon Head
• Lead Time: 15-30 Days
• Service: One-Stop Service
• Mark: Customzied
• Transport Package: Cartons
• Specification: ST3.5-ST6.3
• Trademark: Mianxuan, Customized
• Origin: China Zhejiang
• HS Code: 7318160000
• Production Capacity: 1000tons Per Month
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 0.600kg

Product Description

ISO 7050 DIN 7982 Carbon Steel Screw Black Phillips Drywall Screw Bugle Head Cross Countersunk Tapping Self-Tapping Screw

Material:	Carbon Steel, Stainless Steel, Brass etc.
Standards:	DIN7504, GB/T 16824.1, ISO 7085, etc.
Size:	ST3.5, ST3.9, ST4.2, ST4.8, ST5.5, ST6.3
Class:	HV 420-530, HRC 41-50
Finish:	Plain, Black, Zinc, Yellow Zinc, HDG, Dacromet, etc.
Screw Driver:	Hexagonal

Product Description

Thread Size

ST3.5

(ST3.9)

ST4.2

ST4.8

ST5.5

ST6.3

P	Pitch
c	min
dc	max
	min
e	min
k	max
	min
s	max=nominal size
	min
dp	max
r	max
kw	min
Drilling range(thickness)

1.3	1.3	1.4	1.6	1.8	1.8
0.6	0.6	0.9	0.9	1	1
8.3	8.3	8.8	10.5	11	13.2
7.6	7.6	8.2	9.8	10	12.2
5.96	5.96	7.59	8.71	8.71	10.95
3.45	3.45	4.25	4.45	5.45	6.45
3.2	3.2	4	4.15	5.15	6.15
5.5	5.5	7	8	8	10
5.32	5.32	6.78	7.78	7.78	9.78
2.8	3.1	3.6	4.1	4.8	5.8
0.5	0.5	0.6	0.7	0.8	0.9
1.55	1.55	1.9	2	2.7	3.3
0.7~2.25	0.7~2.4	1.75~3	1.75~4.4	1.75~5.25	2~6

Main Products

 

Company Profile

Our Workshop

Certifications

EXHIBITION DISPLAY

 

DELIVERY&PAYMENT

FAQ

Q1: What thread standards do you follow?

A1: Our screws comply with DIN, ISO, ANSI, and JIS standards, and can also be customized according to customer drawings.

Q2: How do you pack the screws for export?

A2: Standard packing includes bulk cartons with inner boxes or small polybags, placed on pallets for container shipping. Custom boxes or barcoded packaging are available.

Q3: What thread types do you supply?

A3: We offer fine thread, coarse thread, and special thread profiles optimized for sheet metal, steel structures, and roofing applications.

Q4: How do you control product quality?

A4: Every batch is tested for torque, hardness, thread precision, and salt spray corrosion resistance, following ISO 9001 quality system standards.

Q5: Do you offer OEM or customized production?

A5: Yes. We can produce screws according to samples, technical drawings, or specific drive/head combinations, and offer custom packaging and labeling.

Q6: What industries do your self-tapping screws serve?

A6: Our screws are widely used in automotive, electronics, construction, furniture, and machinery assembly industries.