What are the typical lead times for orders?

The average lead time is within 15 workdays, regardless of whether it is peak season or off-season.

What payment terms are accepted?

We accept various payment methods including Western Union, PayPal, D/P, T/T, LC, Small-amount payment, and Money Gram.

Black Phosphated Drywall Screw for Gypsum Board Assembly with High Hardness Performance

Name: Black Phosphated Drywall Screw for Gypsum Board Assembly with High Hardness Performance
Brand: Handan Chang Lan Fastener Manufacturing Co., Ltd.
SKU: 2157907882

Hebei, ChinaHandan Chang Lan Fastener Manufacturing Co., Ltd.

US$0.10

1,000 Tons

Product specifications

M3.5

Sample price:US$5.00/kg.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Round Head

Model NO.

GB16

Groove

Cross

Connection

Other

Head Style

Flat

Standard

Grade

4.8

Thread Type

Fine Thread

Thread Design

Single Thread

Surface Treatment

Zinc Plated

Executive Standard

DIN

Feature

Self Tapping

Transport Package

Bag

Specification

DIY

Trademark

Changlan

Origin

China

Key features

Self-Tapping Efficiency: Excellent self-tapping performance eliminates the need for pre-drilling, saving time and improving construction efficiency.

Anti-Corrosion Protection: Features black phosphating, zinc plating, and hot-dip galvanizing for superior rust and corrosion resistance in humid environments.

Flat Wall Finish: Standard bugle countersunk head with 90-degree conical surface ensures perfect embedding without scratching the wall.

Dual Thread Options: Coarse threads for strong biting force in wood; fine threads for faster speed and precise positioning in light steel keels.

Wide Size Range: Available in 3.5mm and 4.2mm diameters with lengths from 16mm to 120mm, plus customized non-standard sizes.

Global Standard Compliance: Products comply with DIN, ISO, and GB international standards to meet diverse global procurement requirements.

Company profile

Importers and ExportersHigh Repeat Buyers ChoicePatents AwardedProduct Certification

Handan Chang Lan Fastener Manufacturing Co., Ltd.

Hebei, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤3.70hTerms of Payment: Western Union, PayPal, D/P, etc.International Commercial Terms(Incoterms): FOB, DAP, EXW, CIP, CPT, CFR, CIF, Others, FCA, DAT

About Our Factory & Business Background

AddressLin Ming Guan Zhen Bei Shi Kou Cun Dong, Yongnian District, Handan, Hebei, China

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Our Production Capability & Technical Expertise

Main ProductsScrew, Bolt, Nut, Anchor Bolt, Flat Washer, Expansion Bolt, Threaded Rod, High-Strength Bolt, Self-Drilling Screw, Drywall Screw

Our Industry Experience & Global Business Record

Main MarketsNorth America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Product Q&A

Q:What surface treatments are available?

We offer black phosphating, blue-white zinc plating, yellow zinc plating, and hot-dip galvanizing to ensure excellent anti-rust and anti-corrosion performance.

Q:Can I customize the screw sizes?

Yes, we support customized non-standard sizes beyond our mainstream specifications of 3.5mm and 4.2mm diameters.

Q:What is the difference between coarse and fine threads?

Coarse threads provide strong biting force for wooden keels, while fine threads allow faster screwing and accurate positioning for light steel keels and thin metal profiles.

Q:Do these screws require pre-drilling?

No, all screws feature excellent self-tapping performance, allowing them to be installed without pre-drilling to save construction time.

Q:What standards do your drywall screws comply with?

Our products comply with international standards including DIN, ISO, and GB, ensuring quality for global procurement needs.