Manufacturing Wholesale ANSI B18.6.3 Black Oxide Carbon Steel Pan Head Phillips Machine Screws

• Customization: Available
• Material: Carbon Steel
• Type: Pan Head
• Model NO.: ANSI B18.6.3
• Groove: Cross
• Connection: Common Bolt
• Head Style: Round
• Standard: ANSI
• Grade: 4.8
• Surface Finishing: Black Oxide
• Inspection: 100% QC Steps Inspect Before Shipment
• Manufacture Processing: Cold Forging
• Certification: ISO9001
• Transport Package: 20-25kg/Carton+900kg Pallet
• Specification: 24*24*14cm/30*26*18cm
• Trademark: Nixi
• Origin: Wenzhou, China
• HS Code: 731815
• Production Capacity: 500ton/Month

Product Description

ANSI B18.6.3 Black Oxide Carbon Steel Pan Head Phillips Machine Screws

Our black oxide carbon steel pan head machine screws combine the strength and reliability of the ANSI B18.6.3 standard with a durable, sleek black finish. The black oxide coating provides good corrosion resistance with minimal dimensional change, making these screws ideal for applications requiring a discrete appearance, moderate protection, and precise fit in OEM assembly and precision equipment.

Specification

Applications

Precision Machinery & Instruments: Assembly of industrial machinery, optical equipment, and precision instruments where a low-profile, non-reflective finish is desired.
Automotive Aftermarket & Restoration: Custom builds, interior modifications, and restoration projects where a black finish is preferred for aesthetics.
Electronics & Enclosures: Fastening for internal components, black-colored panels, and control cabinets.
High-End Furniture & Displays: Assembly of premium furniture, exhibition displays, and architectural metalwork.
Photography & Audio Equipment: Fastening components in devices where light reflection must be minimized.
General OEM Manufacturing: Original Equipment Manufacturer applications across various industries.

Key Features & Standards

Standard: Compliant with ANSI B18.6.3 for American series machine screws.
Drive Type: Phillips Drive.
Head Type: Pan Head (Type R) as per ANSI standard.
Material: High-Quality Carbon Steel.
Finish: Black Oxide, providing a durable surface with a uniform black appearance and minimal build-up.
Corrosion Resistance: Offers good protection against rust in indoor and mild environments. The finish can be oiled for enhanced protection.
Dimensional Integrity: The black oxide process adds negligible thickness, ensuring screws meet precise dimensional specs without thread interference.

Technical Specifications

(Custom sizes, lengths, and packaging are available upon request.)

Material Grade	Tensile Strength (MPa)	Core Hardness (Rockwell)	Finish & Corrosion Protection
Low Carbon Steel	≥ 420 MPa	B70 - B100	Zinc Plated (Electroplated)

Standard Size Chart (ANSI B18.6.3 Pan Head Machine Screw - Inch Series)

Note: Standard machine screws per ANSI B18.6.3 are typically not assigned a specific property class like bolts. Their mechanical properties are governed by the material and manufacturing process to meet the standard's requirements.

After Sales Service

Standard Warranty: 12 months or 2,000 operating hours (whichever comes first).
Extended Warranty: Optional coverage up to 36 months.
Global Support: 24/7 technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.

Company Profile

Wenzhou Nixi Fastener Co., Ltd.

Wenzhou Nixi Fastener Co., Ltd. — ISO 9001 certified manufacturer with 30+ years of experience in high-quality screws, bolts, nuts, and custom fasteners. All products meet DIN / ISO / ANSI standards with strict quality control for reliable global supply.

Why Choose Us?

Other Products

OEM/ODM Fastener Solutions – Custom screws, bolts, nuts, and non-standard parts tailored to your needs
Strict Quality Control – ISO 9001 certified, meeting DIN / GB / ANSI standards
Competitive Factory Pricing – Direct supply with bulk order discounts
Global Logistics Support – Fast shipping and smooth customs clearance

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FAQ

Q: What's the lead time for orders?
A: Standard fasteners ship within 15–30 days; customized or non-standard parts may take 30–45 days.

Q: Do you offer OEM/ODM service?
A: Yes, we provide customized fastener solutions based on drawings or samples.

Q: What quality standards do your products meet?
A: All products comply with ISO, DIN, ANSI, and GB standards and are produced under ISO 9001 certified quality control.

Q: What documents do you provide for export?
A: We supply a complete set of export documents, including Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin, and other required certificates.

Q: How can I place an order?
A: Contact us by email or phone with your requirements. We'll send a quotation, and once confirmed, you can issue a Purchase Order (PO).

Q: Can I get samples before mass production?
A: Yes, free samples are available; shipping costs are borne by the buyer.