S&S Cycle Head Bolts — Harley-Davidson

S&S Cycle head bolt kit for 2017 Milwaukee-Eight Harley-Davidson models, engineered from heat-treated 8640 steel with 200,000 psi ultimate tensile strength—14% stronger than OEM bolts. 9/16-inch 12-point design with integral washer and black oxide coating for corrosion resistance.

Features

• Heat-treated 8640 steel construction
• 14% stronger than stock Harley head bolts
• 200,000 psi ultimate tensile strength
• 9/16 in. 12-point head with integral washer
• Black oxide coating resists corrosion
• Cold-formed head and threads
• Reusable design

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 900-1006
• Material: Heat-treated 8640 steel
• Tensile Strength: 200,000 psi
• Head Size: 9/16 in. 12-point
• Weight: 2.3 lb
• Category: Fabrication / Bolts

Fitment

Fits Harley-Davidson 2017 Milwaukee-Eight (M8) models.

Frequently Asked Questions

How much stronger are these than stock Harley head bolts?

S&S Cycle head bolts offer 14% greater tensile strength than OEM bolts, engineered for increased durability under load.

What material are these made from?

Heat-treated 8640 steel with 200,000 psi ultimate tensile strength and a black oxide coating for corrosion resistance.

Will these fit my pre-2017 Harley?

This kit is designed for 2017 Milwaukee-Eight models. Confirm your engine type and year before ordering.

Can these bolts be reused?

Yes — the design allows for reuse across multiple applications when maintained properly.