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Painted Hex Washer Head Screws

Home / Products / Hex Washer Head Screws / Painted Hex Washer Head Screws
  • Ningbo Zhenrui Hardware Industrial Co., Ltd.
  • Ningbo Zhenrui Hardware Industrial Co., Ltd.
  • Ningbo Zhenrui Hardware Industrial Co., Ltd.
  • Ningbo Zhenrui Hardware Industrial Co., Ltd.
  • Ningbo Zhenrui Hardware Industrial Co., Ltd.
  • Ningbo Zhenrui Hardware Industrial Co., Ltd.
  • Ningbo Zhenrui Hardware Industrial Co., Ltd.
  • Ningbo Zhenrui Hardware Industrial Co., Ltd.
  • Ningbo Zhenrui Hardware Industrial Co., Ltd.
  • Ningbo Zhenrui Hardware Industrial Co., Ltd.
  • Ningbo Zhenrui Hardware Industrial Co., Ltd.
  • Ningbo Zhenrui Hardware Industrial Co., Ltd.

Painted Hex Washer Head Screws

Product Introduction

Painted Hex Washer Head Screws are carbon steel fastening screws with a hexagonal washer head and drill point, designed for efficient fastening of metal sheets, steel components, panels, and general construction assemblies.

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Core Advantages Application Scenarios OEM / ODM Services Why Choose Us FAQ Technical Parameters Inquiry Form

Core Advantages

1. High Torque Capacity

The hexagonal head design gives Painted Hex Washer Head Screws strong tool engagement during installation. With across-flats dimensions of 6.75–10.00 mm and head heights of 3.6–5.9 mm, the Hex Washer Head Screw is suitable for applications requiring reliable torque transmission and secure fastening.

2. Efficient Installation

Painted Hex Washer Head Screws feature integrated drilling points for efficient metal fastening. Depending on the specification, the screws use #1 or #3 drill points, with drill point lengths of 4.0–9.0 mm. This design helps reduce installation steps in suitable sheet-metal and steel assembly applications.

3. Multiple Sizes for Different Applications

Our Painted Hex Washer Head Screws are available in 4.2, 4.8, 5.5, and 6.3 mm diameters, with standard lengths from 19 to 75 mm. This size range allows distributors and industrial buyers to source different fastening specifications from one manufacturer.

The Hex Washer Head Screw design is suitable for a variety of metal fastening requirements, from light sheet-metal assembly to construction and equipment applications.

4. Larger Bearing Area for Stable Connections

The washer head increases the bearing area between the screw head and fastening surface. Painted Hex Washer Head Screws are available with 14 mm and 16 mm washer sizes, while selected specifications can be supplied with EPDM washers. This configuration helps provide stable surface contact and supports reliable connections where vibration resistance and fastening stability are important.

5. Carbon Steel Construction with Zinc Surface Treatment

Painted Hex Washer Head Screws are manufactured from carbon steel for dependable mechanical performance and cost-effective bulk purchasing. The blue-white zinc surface treatment provides a clean metallic finish and is suitable for general industrial and construction fastening applications.

Application Scenarios

Painted Hex Washer Head Screws are commonly supplied for B2B applications where efficient metal fastening and stable connections are required.

Metal Roofing
Sheet Metal Assembly
Steel Structures
HVAC & Ductwork
Metal Panels
Industrial Equipment
Construction Projects
Wholesale Distribution

OEM / ODM Services

We manufacture Painted Hex Washer Head Screws in our own factory and provide OEM/ODM support for distributors, wholesalers, contractors, and industrial buyers.

Available customization options include:

• Custom head height
• Custom raw material wire diameter
• Custom washer thickness

Why Choose Us

1. Integrated R&D, Production, Sales, and Service

Founded in 2011, we are a comprehensive hardware enterprise integrating R&D, production, sales, and service. With in-house manufacturing and direct factory supply, we can control quality, cost, and lead time more effectively than trading companies.

2. Certified Quality Management System

We hold ISO 9001:2015 certification for our quality management system, covering the production of fasteners. This ensures consistent quality control and reliable production standards for bulk orders.

3. Wide Product Portfolio and Application Coverage

Our products cover construction hardware, furniture hardware, automotive hardware accessories, and precision mechanical parts, widely used in residential construction, commercial facilities, transportation vehicles, electronic equipment, and other industries.

FAQ
Q1: What is the MOQ for Painted Hex Washer Head Screws?

The standard MOQ is 100,000 pcs for bulk orders.

Q2: What payment terms do you accept?

We accept cash on delivery according to the agreed order terms.

Q3: Do you provide OEM and ODM services?

Yes. We support customization of head height, raw material wire diameter, and washer thickness based on customer requirements.

Q4: What is the production lead time?

The standard production lead time is approximately 45 days after order confirmation.

Q5: What packaging options are available?

We provide carton, paper box, and plastic bag packaging according to customer requirements.

SIZE S (Across Flats) dc (Head Dia.) C (Head Thick.) K (Head Height) e (Across Corners) P (Pitch) d1 (Major Dia.) d2 (Minor Dia.) drilling no. y (Drill Point Length) dp (Drill Point Dia.) EPDM (Washer)
4.2*L MAX 7 8.60  0.95  3.95  / 1.41  4.20  3.10  3# 6.00  3.60  / METAL THICKNESS 0.5MM
EPDM 2MM
MIN 6.75 8.30  0.70  3.60  7.20  4.08  2.90  4.50  3.50 
4.8*L MAX 8.00  10.60  1.00  4.70  / 2.12  4.80  3.40  1# 5.00  3.15  14MM
MIN 7.75 10.00  0.80  4.40  8.87  4.65  3.10  4.00  2.90 
4.8*L MAX 8.00  10.60  1.00  4.70  / 1.59  4.80  3.40  3# 7.50  4.20  14MM
MIN 7.75 10.00  0.80  4.40  8.87  4.65  3.10  6.00  4.00 
5.5*L MAX 8.00  11.00  1.00  5.10  / 1.81  5.46  3.80  3# 8.00  4.70  16MM
MIN 7.75 10.00  0.80  4.60  8.87  5.25  3.60  7.00  4.55 
6.3*L MAX 10.00  13.00  1.20  5.90  / 1.81  6.30  4.60  3# 9.00  5.60  16MM
MIN 9.75 12.00  0.90  5.20  11.25  6.05  4.30  7.50  5.40 

Length Comparison Table
length 19 25 32 38 50 63 75
L 18-19 23.5-25 30.6-32 36.5-38 48.5-50 61.5-63.5 73.5-76

Parameter Specification
Product Name Painted Hex Washer Head Screws
Material Carbon Steel
Surface Treatment Blue White Zinc
Packaging Carton / Paper Box / Plastic Bag
MOQ 100,000 pcs
Lead Time 45 days

（Notes）
1. EPDM metal-rubber composite washer: Unless otherwise specified, the default standard is: Metal sheet thickness 0.50mm (+/-0.1mm), Rubber thickness 2mm (+/-0.2mm).

2. EPDM metal-rubber composite washer standard default: 4.8 series is equipped with 14MM; 5.5 and 6.3 series are equipped with 16mm. Quality is a domestic metal-rubber (ordinary rubber) composite washer.

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About Us
Ningbo Zhenrui Hardware Industrial Co., Ltd.

Founded in 2011, we are a comprehensive hardware enterprise integrating R&D, production, sales, and services. Since our establishment, we have adhered to the philosophy of "Innovation-driven, Customer-oriented, Integrity for Win-Win Cooperation". Focused on manufacturing, we are committed to supplying high-quality products to customers. With years of steady development, we have grown into an influential player in the industry.

Our product portfolio covers construction hardware, furniture hardware, automotive hardware accessories, and precision mechanical parts, widely used in residential construction, commercial facilities, transportation vehicles, electronic equipment, and many other industries. By introducing advanced production equipment and technologies, along with a strict quality control system, we ensure that every product meets or exceeds customer expectations.

We advocate a people-oriented corporate culture, value employees’ growth and well-being, and foster a harmonious work environment. The company has formulated basic management systems in accordance with laws. Currently, we are steadily advancing toward group-based, specialized, and international development.

Certificate Of Honor
  • Certificate of Utility Model Patent
  • Quality Management System Certificate
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