China DIN 7982 Flat Head Cross Recessed Stainless Steel Drywall Countersunk Self Tapping Screws

• Customization: Available
• Material: Stainless Steel
• Shape of Head: Round
• Model NO.: DIN 7982
• 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: ST2.2-ST6.3
• Trademark: Mianxuan, Customized
• Origin: China Zhejiang
• HS Code: 7318159090
• Production Capacity: 1000tons Per Month
• Package Size: 10.00cm * 5.00cm * 5.00cm
• Package Gross Weight: 0.500kg

Product Description

China DIN 7982 Flat Head Cross Stainless Steel Drywall Countersunk Self-Tapping Screws
 

Material:	Carbon Steel, Stainless Steel, Brass etc.
Standards:	DIN7982, GB/T 846, ISO 7050, etc.
Size:	ST2.2, ST2.9, ST3.5, ST3.9, ST4.2, ST4.8, etc.
Class:	HV 420-530, HRC 41-50
Finish:	Plain, Black, Zinc, Yellow Zinc, HDG, Dacromet, etc.
Screw Driver:	Cross

Thread Size

ST2.2

ST2.9

ST3.5

(ST3.9)

ST4.2

ST4.8

ST5.5

ST6.3

P		Pitch
a		max
dk		max=nominal size
		min
k		≈
y		max	Type C
			Type F
Socket No.
M1		≈
M2		≈

0.8	1.1	1.3	1.3	1.4	1.6	1.8	1.8
0.8	1.1	1.3	1.3	1.4	1.6	1.8	1.8
4.3	5.5	6.8	7.5	8.1	9.5	10.8	12.4
4	5.2	6.44	7.14	7.74	9.14	10.37	11.97
1.3	1.7	2.1	2.3	2.5	3	3.4	3.8
2	2.6	3.2	3.5	3.7	4.3	5	6
1.6	2.1	2.5	2.7	2.8	3.2	3.6	3.6
1	1	2	2	2	2	3	3
2.5	3	4.2	4.6	4.7	5.1	6.8	7.1
2.4	2.8	4	4.2	4.4	5	6.3	7

Product Description

 

Main Products

 

: DIN933, DIN931, DIN912, DIN603, DIN7985, DIN7991, DIN6921, ASME/ANSI B 18.2.1, ASME/ANSI B18.2.3.1 M, GB, BSW, ISO Hex bolt, carriage bolt, heavy hex bolt, flange head bolt, anchor bolt, etc

: DIN934, DIN6923, DIN985, ISO4032 hex heavy hex nut, 2H nut, A563 / A563M cap nut, nylon nut, etc

: threaded rod DIN975,DIN976, threaded bar DIN975 stud bolt, B7 stud bolt ect

: hex screw, DIN912; self-drilling screw, DIN7504; self-tapping screw, DIN7981/7982; drywall screw, pan head screw, button head screw, machine screw, chipboard screw, furniture screw, wood screw, etc

: flat washer DIN125, spring washer DIN127, lock washer, square washer, spring lock washer, plain washer, etc
 

Company Profile

Our Workshop

Certifications

EXHIBITION DISPLAY

 

DELIVERY&PAYMENT

FAQ

Q1: What types of self-tapping screws do you supply?

A1: We offer a full range, including:

• Type A, AB, B self-tapping screws

• Thread-forming (T-form) screws

• Thread-cutting screws (Type 1/23/25/F)

• Self-drilling screws (TEK)

• Concrete self-tapping screws

• Customized drive types and washer assemblies

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: Can you produce self-tapping screws for high-corrosion applications such as outdoor and marine use?

A3: Yes. We recommend A4 stainless steel or Geomet/Dacromet coatings for long-term corrosion resistance.

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.

Q7: Do you supply self-tapping screws with combined washers?

A7:  Yes. We provide:

• EPDM bonded washers

• Neoprene washers

• Integrated flange heads

• Roofing screw assemblies