Countersunk Head Self Drilling Screws

• Material: High Strength Steel
• Specifications: 3.9*40mm
• Head Type: Flat Head
• Drive Type: Philips #2
• Steel: C1022
• Surface: Brown Coating
• Model NO.: 3.9*41mm
• Screw Type: Drilling Screw
• Type: Countersunk Head
• Head Style: Counter Sunk Bolt
• Connection: Drilling Screws
• Grade: 9.8
• Transport Package: Bucket, Carton, Pallet
• Specification: DIN
• Trademark: TS
• Origin: Zhejiang China
• HS Code: 731814
• Production Capacity: 200 Tons/Month

Product Description

Countersunk Head Self Drilling Screws
Brown coated, Ruspert finishing.
Or Zinc Galvanizing, Black and Grey Phosphated options
Material: C1022, steel, hardned
More screws information, kindly visit our online catalogue
Selfdrillingscrews. Cn

Head Style: Flat, Cheese, hex, hex washer, Pan head, Pan Framing Head
Drive Style: Philips, Slotted, Torx, Square
Standard: ANSI/ASME/JIS/BS/DIN6928, DIN7981, DIN7982
Diameter: 3.5mm, 3.9mm
Length: 9.5mm, 11mm
Inch Specifications: #6, #7
Screw length: 3/8 and 7/16 inch


Pan head is the common type of a self tapping screws or self drillings. It can be in various drive, for example slotted drive, philips drive, conbination drive, square drive, torx drive.
Self tapping screws can drive its own way on the target object so that there is no need to pre-drill any holes. Generally for wood, plastic, plaster and other soft material, using a self tapping screws with a sharp point, while for hard material, like steels and sheet metals, always using a drilling head self tapping screws.


Transhow Fasteners produce and export a wide selection of drywall screws, drywall tek screws, Chipboard screws, wood screws and various gypsum screws, woodwork self tapping screws, self drilling screws. Pan head tapping and drilling screws, counter sunk head, flat head, hex head, hex washer head, hex Socket head, pan framing head, buggle head, modified truss head and more tapping screws for wood or metal works. Materials used for manufacturing tapping screws are usually C1022 low carbon steel, Stainless Steel AISI304, AISI302, AISI201, AISI410 and for more options please contact us directly

Size	Pack	Price	WT
4.8*19	1,000	$10.11	3.79
4.8*25	1,000	$11.47	4.30
4.8*29	1,000	$13.04	4.89
4.8*35	1,000	$14.13	5.30
4.8*38	1,000	$14.40	5.40
4.8*50	500	$17.09	6.41
5.5*19	1,000	$14.11	5.29
5.5*25	500	$15.87	5.95
5.5*32	500	$17.89	6.71
5.5*38	500	$19.63	7.36
5.5*51	200	$23.12	8.67
5.5*63	200	$26.88	10.08