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Screws › Countersunk & Flat-Head Machine Screws

Custom Inside and Outside Double Thread Screws Nylok Screws

Updated 2026-11-04 · Markdown version

Model no. Hollow screws

US$0.241,000–9,999 pieces

US$0.09610,000–49,999 pieces

US$0.07250,000–99,999 pieces

US$0.048100,000+ pieces

MOQ 1,000 pieces · Final price confirmed in your quote

Material: High Strength Steel
Head Style: Round
Standard: DIN, GB, ANSI, BSW, JIS, GOST, Customizable
Grade: 12.9
Surface Treatment of Screws: Electroplating, Dacromet
Sizes: M0.8~M14
Standard-2: DIN/ISO/ANSI/GB
Package Size: 26.00cm * 20.00cm * 14.00cm

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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	High Strength Steel
Type	Countersunk Head
Model NO.	Hollow screws
Groove	Flower Word
Connection	Common Bolt
Head Style	Round
Standard	DIN, GB, ANSI, BSW, JIS, GOST, Customizable
Grade	12.9
Type-2	Self Drilling Screws
Fastener Factory	Screw Manufacturer
Surface Treatment of Screws	Electroplating, Dacromet
Application Industry	Fasteners for Automotive Peripheral Products
Manufacture Process	Heading, Threading, Heating, Plating...
Service	OEM ODM Customized
Certification	ISO9001:2015
Authentication	RoHS
Sample Availablity	Supply Free Samples
Sizes	M0.8~M14
Standard-2	DIN/ISO/ANSI/GB
Transport Package	Box
Specification	26cm20cm15cm
Origin	China
HS Code	7318159090
Production Capacity	500000 Piece/Pieces Per Day
Package Size	26.00cm * 20.00cm * 14.00cm
Package Gross Weight	9.000kg
Maximum order quantity	100 piece
Sample price	$0.10/piece
Min. order	10000
Category	Countersunk & Flat-Head Machine Screws

Technical parameters

Hollow screws inside and outside double thread screws Nylok screws connecting nuts with torx slots
Product Parameter
	Available Material	1. Stainless Steel: SUS201; SS303, SS304, SS316, SS410, SS430; 2. Carbon Steel: C1008, C1018, C1022, 10B21; 3. Alloy Steel; 4. Brass; 5. Aluminum; 6. Copper; 7. Customized as your requirements.
Head Type	Countersunk, Flat, Phillips, Pan, Truss, Flat, Round, Oval, HEX, Cheese, Cap, Oval, Binding
Surface Treatment	Zinc, Plain, Polish, Black Oxide, Cadmium Plated, Zinc-aluminum Coated, Chrome Plated, Silver Plated, Anodized, or as your requirements
	Sizes	M0.8~M14
Length	1~200mm
Screw Type	Tapping screws, Machine screws, Wood screws, Drywall screws, Cross recessed screws, Concrete screws, Torx screws, Hex cap screws, Hex socket head screws, Set screws, Shoulder screws, Thumb screws, Binding screws, Flange screws, Screw bolts, Standoff screws, Mini screws, and all custom products, and others.
Hardness	1. Carbon Steel: 4.8~12.9 grade; 2. Stainless Steel: A2-70, A4-70, A4-80, A5-80; 3. As you requirement.
Sample Available	Free samples, and accept small batch trial production order

Other attributes
Place of Origin	Guangdong, China
Head Style	Pan, Truss, Flat, Oval, Round, HEX, Cheese, Binding
Model Number	Other
Standard	DIN/ISO/ANSI/GB
Screw fastener	Consumer electronics and automotive fasteners
Finish	zinc,NI,chorme,brass,gold, dacromat...
Product size	Standard or Customized
Sample availablity	Supply free samples
Manufacture process	Heading,Threading,Heating,Plating...
Carton size	Standard or Customized
Pallet size	1Mx1M
Payment	T/T
MOQ	1000pcs
Lead time
Quantity (pieces)	1 - 10000	10001 - 50000	50001 - 100000	> 100000
Lead time (days)	10	15	20	To be negotiated

Samples

Maximum order quantity: 100 piece Sample price:$0.10/piece

Customization

Custom size and materials Min. order: 10000 For more customization details, message supplier

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FAQ

Description

Custom Inside and Outside Double Thread Screws Nylok Screws is part of our countersunk & flat-head machine screws range (Screws).

Key details

Type: Countersunk Head
Standard: DIN, GB, ANSI, BSW, JIS, GOST, Customizable
Material: High Strength Steel
Grade: 12.9
Head Style: Round
Groove: Flower Word
Connection: Common Bolt
Certification: ISO9001:2015

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 1,000 pieces at US$0.048 – 0.24 per piece. 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 Custom Inside and Outside Double Thread Screws Nylok Screws?

The listed minimum order is 1,000 pieces, at US$0.048 – 0.24 per piece. 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$0.24 for 1,000–9,999 pieces; US$0.096 for 10,000–49,999 pieces; US$0.072 for 50,000–99,999 pieces; US$0.048 for 100,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of Custom Inside and Outside Double Thread Screws Nylok Screws?

Type: Countersunk Head; Standard: DIN, GB, ANSI, BSW, JIS, GOST, Customizable; Material: High Strength Steel; Grade: 12.9; Head Style: Round; Groove: Flower Word. 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 surface treatment of screws. 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 countersunk & flat-head machine screws are available?

The Countersunk & Flat-Head Machine Screws category lists 2,424 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-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$0.048 – 0.24MOQ 1,000 piecesGet a quote WA