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Screws › Self-Tapping & Thread-Forming Screws

Coarse Thread Black Phosphate Drywall Screws with Bugle Head

Updated 2026-11-04 · Markdown version

Model no. Drywall Screws

US$1,068 – 1,176 / kilogram

MOQ 500 kilograms · Final price confirmed in your quote

Material: Carbon Steel
Shape of Head: Bugle Head,Phillips Drive
Surface Finishing: Zinc Plated
Customized: Customized
Finishes: Black/Gray Phosphated, Zinc Plated, Nickel Plated
Thread Size: 2.2, M2.9, M3.5, M4.2, M4.8, M5.5, M6.3
Length: 6.5mm, 9.5mm, 13mm, 16mm, 19mm, 22mm, 25mm, 32mm,
Head Type: Cross Recessed Countersunk Head (Phillips)

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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
Shape of Head	Bugle Head,Phillips Drive
Model NO.	Drywall Screws
Surface Finishing	Zinc Plated
Customized	Customized
Finishes	Black/Gray Phosphated, Zinc Plated, Nickel Plated
Carbon Steel	C1018/C1022
Application	Drywall, Plasterboard, Partition Wall, Ceiling, Wo
Feature	Bugle Head, Sharp Point, High Tensile
Thread Size	2.2, M2.9, M3.5, M4.2, M4.8, M5.5, M6.3
Length	6.5mm, 9.5mm, 13mm, 16mm, 19mm, 22mm, 25mm, 32mm,
Head Type	Cross Recessed Countersunk Head (Phillips)
Type	Self-Tapping Screw, Drywall Screw, Plasterboard Sc
Standard	["DIN7982","ISO.ANSI. BS.DIN.JIS.GB.etc"]
Grade	4.8, 8.8, 10.9, A2-70 , A4-80
Packing	Bulk ,Plain Box, Color Box, Poly Bag, PP Box + Woo
Transport Package	Box, Carton, Pallet
Specification	#6(3.5mm),#7(3.9mm),#8(4.2mm),#10(4.8mm),#12(5.5mm
Origin	China
HS Code	7318140000
Production Capacity	300 Tons/Month
Package Size	25.00cm * 23.00cm * 15.00cm
Package Gross Weight	5.000kg
Superior Material	C1022/C1018 steel offers high hardness and tensile strength, reducing breakage during installation.
Bugle Head Design	Countersinks smoothly into drywall, preventing surface damage and ensuring a neat finish.
Coarse Thread	Deep, sharp threads bite into wood quickly, providing strong holding power and reducing stripping.
Black Phosphate Finish	Provides excellent corrosion resistance, ideal for indoor and dry outdoor environments.
Full Size Range	Available in metric (M3.5–M5.5) and imperial (#6–#12) sizes, lengths from 13mm to 150mm.
Versatile Packaging	Bulk, small box or poly bag options to suit different customer needs.
Head Style	Bugle Head (Phillips PH2 Drive)
Surface Treatment	Black Phosphate (Anti-rust)
Thread Type	Coarse Thread (Sharp Point)
Size Range	Metric: M3.5, M3.9, M4.2, M4.8, M5.5 / Imperial: #6, #7, #8, #10, #12
Length Range	13mm, 16mm, 19mm, 25mm, 32mm, 38mm, 45mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 120mm, 150mm
Precision tolerance	as accurate as 0.01 mm
Core processes	cold forging, stamping, CNC machining, full automatic optical inspection
Available raw materials	carbon steel, stainless steel, high-temperature alloy, copper, titanium, carbon fiber, PEEK, nylon
Category	Self-Tapping & Thread-Forming Screws

Technical parameters

Size(mm)	Size(inch)	Size(mm)	Size(inch)	Size(mm)	Size(inch)	Size(mm)	Size(inch)
3.5*13	#6*1/2	3.5*63	#6*2-1/2	4.2*13	#8*1/2	4.2*102	#8*4
3.5*16	#6*5/8	3.5*75	#6*3	4.2*16	#8*5/8	4.8*51	#10*2
3.5*19	#6*3/4	3.9*20	#7*3/4	4.2*19	#8*3/4	4.8*65	#10*2-1/2
3.5*25	#6*1	3.9*25	#7*1	4.2*25	#8*1	4.8*70	#10*2-3/4
3.5*30	#6*1-1/8	3.9*30	#7*1-1/8	4.2*32	#8*1-1/4	4.8*75	#10*3
3.5*32	#6*1-1/4	3.9*32	#7*1-1/4	4.2*34	#8*1-1/2	4.8*90	#10*3-1/2
3.5*35	#6*1-3/8	3.9*35	#7*1-1/2	4.2*38	#8*1-5/8	4.8*100	#10*4
3.5*38	#6*1-1/2	3.9*38	#7*1-5/8	4.2*40	#8*1-3/4	4.8*115	#10*4-1/2
3.5*41	#6*1-5/8	3.9*40	#7*1-3/4	4.2*51	#8*2	4.8*120	#10*4-3/4
3.5*45	#6*1-3/4	3.9*45	#7*1-7/8	4.2*65	#8*2-1/2	4.8*125	#10*5
3.5*50	#6*2	3.9*51	#7*2	4.2*70	#8*2-3/4	4.8*127	#10*5-1/8
3.5*55	#6*2-1/8	3.9*55	#7*2-1/8	4.2*75	#8*3	4.8*150	#10*6
3.5*57	#6*2-1/4	3.9*65	#7*2-1/2	4.2*90	#8*3-1/2	4.8*152	#10*6-1/8

Description

Coarse Thread Black Phosphate Drywall Screws with Bugle Head is part of our self-tapping & thread-forming screws range (Screws).

Key details

Type: Self-Tapping Screw, Drywall Screw, Plasterboard Sc
Standard: ["DIN7982","ISO.ANSI. BS.DIN.JIS.GB.etc"]
Material: Carbon Steel
Grade: 4.8, 8.8, 10.9, A2-70 , A4-80
Thread Size: 2.2, M2.9, M3.5, M4.2, M4.8, M5.5, M6.3
Length: 6.5mm, 9.5mm, 13mm, 16mm, 19mm, 22mm, 25mm, 32mm,
Head Type: Cross Recessed Countersunk Head (Phillips)
Head Style: Bugle Head (Phillips PH2 Drive)

Available configurations include material, shape of head, surface finishing, customized and finishes. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 500 kilograms at US$1,068 – 1,176 per kilogram. 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 Coarse Thread Black Phosphate Drywall Screws with Bugle Head?

The listed minimum order is 500 kilograms, at US$1,068 – 1,176 per kilogram. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size.

What are the main specifications of Coarse Thread Black Phosphate Drywall Screws with Bugle Head?

Type: Self-Tapping Screw, Drywall Screw, Plasterboard Sc; Standard: ["DIN7982","ISO.ANSI. BS.DIN.JIS.GB.etc"]; Material: Carbon Steel; Grade: 4.8, 8.8, 10.9, A2-70 , A4-80; Thread Size: 2.2, M2.9, M3.5, M4.2, M4.8, M5.5, M6.3; Length: 6.5mm, 9.5mm, 13mm, 16mm, 19mm, 22mm, 25mm, 32mm,. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include material, shape of head, surface finishing, customized and finishes. 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

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US$1,068 – 1,176MOQ 500 kilogramsGet a quote WA