Grade 5 Titanium Socket Head Cap Screws

Grade 5 titanium socket head cap screws are high-strength Ti-6Al-4V fasteners with an internal hex drive and cylindrical head. They are selected where compact head geometry, low component mass and corrosion resistance are important. Finished-screw compliance must be defined by the purchase specification; the alloy grade alone does not establish all mechanical and dimensional requirements.

Product Specifications

Dimensions and availability are confirmed against the requested standard or drawing. This page does not declare current stock.

Material and Mechanical Requirements

Ti-6Al-4V combines low density with substantially higher strength than commercially pure titanium. Raw-material chemistry and condition should be verified against the governing material specification and MTC. Finished fastener performance depends on diameter, thread geometry, manufacturing route, heat treatment and the invoked fastener specification; bar-stock values must not be used as a substitute for finished-screw acceptance tests.

Standards and Ordering Definition

ISO 4762 defines socket head cap screw dimensions, while DIN 912 is commonly referenced in legacy drawings. ASTM F468/F468M may be specified for mechanical and chemical requirements for nonferrous bolts, screws and studs. Buyers should state the exact edition and any supplemental testing instead of combining standards without confirming compatibility.

• Grade, specification and material condition
• Diameter, pitch, length, thread tolerance and thread coverage
• Head and internal-hex dimensions
• Surface finish, cleaning and anti-galling requirement
• Quantity, inspection plan, marking, packaging and certificates

Applications and Design Considerations

Grade 5 titanium socket screws are evaluated for aerospace fixtures, marine and offshore equipment, robotics, motorsport, high-performance bicycles, precision instruments and compact industrial assemblies. Suitability depends on joint load, fatigue, temperature, galvanic compatibility and service environment. Titanium threads can gall; validated lubrication, clean assembly, controlled tightening speed and project-specific torque procedures are recommended.

Inspection and Traceability

Available quality controls may include raw-material certificate review, dimensional inspection, thread gauging, visual examination, hardness or mechanical testing when required, positive material identification where suitable, and heat/lot traceability. The quotation should identify which reports and third-party inspections are required.

Frequently Asked Questions

Is ISO 4762 the same as DIN 912?

The standards describe closely related socket head cap screw dimensions, but drawings and procurement documents should use the required standard and edition because details and tolerances should not be assumed identical.

Do Grade 5 titanium socket screws need anti-seize?

Titanium threads are susceptible to galling. A compatible lubricant or coating and a validated installation procedure are commonly considered, subject to cleanliness, temperature and service requirements.

Can custom sizes be manufactured?

Custom diameter, length, thread, head geometry and drawing-specific parts can be reviewed for manufacturability, quantity and inspection requirements.