Precision Shoulder Screw

Our Precision Shoulder Screws (also known as precision shoulder bolts, precision step screws, precision dowel screws, or precision shoulder fasteners) are manufactured with tight tolerances to ensure excellent alignment and reliable fastening. Designed for demanding applications, these screws combine premium Materials, advanced CNC Machining, and strict quality control. As a leading precision shoulder screw manufacturer and supplier, we also provide OEM precision shoulder screws and custom precision shoulder bolts factory-direct from China to meet your unique project requirements.

Key Features

• High Precision: Tight tolerances and superior dimensional accuracy.

• Material Variety: Available in stainless steel, carbon steel, and aluminum alloys.

• Custom Solutions: OEM & tailor-made designs for specific applications.

• Durability: Heat-treated for improved hardness and long service life.

• Flexible Options: Offered in metric and inch sizes, with multiple head types (flat head, countersunk, hex socket).

• Wholesale Supply: Large-volume wholesale precision shoulder fasteners with competitive pricing.

Manufacturing Process

Our precision shoulder screws are produced through advanced processes, including:

• CNC Machining – Ensures superior dimensional accuracy.

• Turning & Milling – For customized shapes and sizes.

• Heat Treatment – Improves hardness and wear resistance.

• Thread Rolling & Grinding – Guarantees smooth finish and precision fit.

Material Selection

• Stainless Steel Precision Shoulder Screws – Excellent corrosion resistance, ideal for marine and Medical applications.

• Carbon Steel Precision Shoulder Bolts – High strength and load capacity, suitable for industrial machinery.

• Aluminum Precision Shoulder Screws – Lightweight and durable, perfect for aerospace and electronics.

• Hardened Precision Shoulder Screws – Enhanced wear resistance for heavy-duty use.

Surface Treatment Options

To improve appearance, durability, and corrosion resistance, we offer multiple surface finishes:

• Polishing – Smooth finish for aesthetic and functional use.

• Electroplating (Zinc, Nickel, Chrome) – Enhanced anti-rust performance.

• Anodizing (for Aluminum Screws) – Color options with improved corrosion protection.

• Black Oxide Coating – Anti-corrosion with a professional matte finish.

Precision & Quality Control

As a trusted precision shoulder screw supplier, we apply strict inspection standards:

• Tolerance Control: ±0.01 mm to ensure perfect alignment.

• Surface Roughness: Up to Ra 0.8 μm for smooth performance.

• Testing Equipment: CMM (Coordinate Measuring Machine), hardness tester, and thread gauges.

• 100% Quality Check: From raw material to finished product.

Applications

Our precision shoulder screws and bolts are widely used in:

• Automotive – Engines, transmissions, and assemblies.

• Aerospace – Aircraft components requiring high accuracy.

• Industrial Machinery – Alignment, fastening, and rotating parts.

• Medical Devices – Precision fasteners for surgical instruments.

• Electronics – Fixing delicate and compact parts.

• Marine Equipment – Corrosion-resistant fasteners for harsh environments.

FAQ

Q1: Can you provide OEM precision shoulder screws?
Yes, we are a custom precision shoulder bolts factory offering OEM designs tailored to your specifications.

Q2: What is your delivery time?
For standard models, we offer fast delivery. For custom precision shoulder screws, lead time depends on complexity, usually 2–4 weeks.

Q3: Do you support wholesale orders?
Yes, we provide wholesale precision shoulder fasteners with factory-direct pricing for bulk orders.

Q4: What sizes are available?
Both metric and inch precision shoulder screws are available, with various head types (flat head, countersunk, hex socket).

Q5: Why choose your company as a supplier?
As a precision shoulder screw manufacturer in China, we combine CNC machining expertise, strict quality control, competitive pricing, and customization service to deliver high-value solutions.