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Screws › Self-Tapping & Thread-Forming Screws

Flat Countersunk Head Csk Phillips Drive Self Tapping Screws

Updated 2026-11-04 · Markdown version

Model no. 4.2*13mm

US$1,3201–24 tons

US$1,20025+ tons

MOQ 1 ton · Final price confirmed in your quote

Material: Carbon Steel
Head Style: Round
Standard: DIN, GB, ANSI, BSW, JIS
Grade: 4.8
Finish: Yellow Zinc/Galvanized
Thread Size: St 3.5/3.9/4.2/4.8/5.5/6.3/8
Package Size: 25.00cm * 17.00cm * 15.00cm

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Specifications are as listed for this product. Engineering Hardware & Fasteners confirms ratings, mating parts, compatibility, packing and lead time with you before you order.

Specifications

Customization	Available
Material	Carbon Steel
Type	Countersunk Head
Model NO.	4.2*13mm
Groove	Cross
Connection	Hinged Bolts
Head Style	Round
Standard	DIN, GB, ANSI, BSW, JIS
Grade	4.8
Finish	Yellow Zinc/Galvanized
Thread Size	St 3.5/3.9/4.2/4.8/5.5/6.3/8
Certification	ISO9001:2035, SGS, RoHS
Process	Cold Heading
Transport Package	Shipping by Sea
Origin	Tianjin China
Production Capacity	2000tons/Year
Package Size	25.00cm * 17.00cm * 15.00cm
Package Gross Weight	25.500kg
Category	Self-Tapping & Thread-Forming Screws

Technical parameters

Product Name	Flat Self Tapping Screw	Thread style	Full thread, Half thread
Material	C1022A	Standard	DIN/GB/ANSI/BSW/JIS/GOST
Head style	Round Head	Diameter	3.5MM~6.3MM
color	Gray/white/black/blue/yellow/green	Finished	Polish, Passication
Origin	China	Transport Package	Bag/Box/Carton
Thread density	UNC, UNF, BSW,	OEM	Provide customized services

Size(inch)	Size(mm)	Size(inch)	Size(mm)	Size(inch)	Size(mm)
#7x1/2''	M3.9x13	#8x1/2''	M4.2x13	#10x1/2''	M4.8x13
#7x5/8''	M3.9x16	#8x5/8''	M4.2x16	#10x5/8''	M4.8x16
#7x3/4''	M3.9x19	#8x3/4''	M4.2x19	#10x3/4''	M4.8x19
#7x1''	M3.9x25	#8x1''	M4.2x25	#10x1''	M4.8x25
#7x1-1/4''	M3.9x32	#8x1-1/4''	M4.2x32	#10x1-1/4''	M4.8x32
#7x1-1/2''	M3.9x38	#8x1-1/2''	M4.2x38	#10x1-1/2''	M4.8x38
#7x2''	M3.9x50	#8x2''	M4.2x50	#10x2''	M4.8x50
#7x2-1/2''	M3.9x63	#8x2-1/2''	M4.2x63	#10x2-1/2''	M4.8x63
#7x3''	M3.9x75	#8x3''	M4.2x75	#10x3''	M4.8x75
		#8x3-1/5''	M4.2x80	#10x3-1/5''	M4.8x80
		#8x3-1/2''	M4.2x90	#10x3-1/2''	M4.8x90
		#8x4''	M4.2x100	#10x4''	M4.8x100

Description

Flat Countersunk Head Csk Phillips Drive Self Tapping Screws is part of our self-tapping & thread-forming screws range (Screws).

Key details

Type: Countersunk Head
Standard: DIN, GB, ANSI, BSW, JIS
Material: Carbon Steel
Grade: 4.8
Thread Size: St 3.5/3.9/4.2/4.8/5.5/6.3/8
Head Style: Round
Groove: Cross
Finish: Yellow Zinc/Galvanized

Available configurations include material, head style, standard, grade and finish. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 1 ton at US$1,200 – 1,320 per ton. Send one inquiry with the part number, quantity and destination, and Engineering Hardware & Fasteners confirms size, thread, material, grade, finish, price, lead time and shipping, checks the goods before dispatch and ships them to you.

Frequently asked questions

What is the minimum order quantity (MOQ) for Flat Countersunk Head Csk Phillips Drive Self Tapping Screws?

The listed minimum order is 1 ton, at US$1,200 – 1,320 per ton. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size.

How does the price change with quantity?

Volume pricing: US$1,320 for 1–24 tons; US$1,200 for 25+ tons. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of Flat Countersunk Head Csk Phillips Drive Self Tapping Screws?

Type: Countersunk Head; Standard: DIN, GB, ANSI, BSW, JIS; Material: Carbon Steel; Grade: 4.8; Thread Size: St 3.5/3.9/4.2/4.8/5.5/6.3/8; Head Style: Round. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include material, head style, standard, grade and finish. Size, thread, length, material and grade, surface finish, head marking, packaging and labels can be quoted to your specification or drawing.

What is the lead time and how is it shipped?

Lead time depends on quantity and customization and is confirmed in your quote. Engineering Hardware & Fasteners checks the goods before dispatch and ships by express, air or sea; mixed orders can be consolidated in one shipment.

Which other self-tapping & thread-forming screws are available?

The Self-Tapping & Thread-Forming Screws category lists 4,881 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/screws/self-tapping-thread-forming-screws/

How we work

Specified, checked and shipped by Engineering Hardware & Fasteners

Engineering Hardware & Fasteners supplies bolts, screws, nuts, washers, anchors, rivets and fastening hardware to equipment makers, contractors, distributors and maintenance teams. Orders go through one controlled process: size, thread, material, grade and finish confirmed, samples approved, dimensions, thread fit and plating checked before packing, then packed for export — standard or made to drawing.

DIN, ISO, ASTM, ANSI, JIS and GB standard parts
Non-standard parts made to your drawing
Dimensions, thread gauges and plating checked before packing
Export cartons and pallets, consolidated mixed orders
Samples available for approval before mass production

More about us → · Request a sample or custom quote →

Request a quote for this product

US$1,200 – 1,320MOQ 1 tonGet a quote WA