Fasteners and Materials

Common high strength fasteners materials are made by high strength heat-treated steels and its alloys. Steel alloy (iron-based material) suffers from rusting and other disabilities in terms of weight/strength ratio, however, the case of manufacture and processing makes steel a common choice for commodified fastener material for high strength components.

Titanium Fasteners

ProPioneer Engineering (PPE) has been working on Titanium fasteners since the company's epoch. In theory, Titanium alloy has the highest strength to weight ratio in terms of common metal alloy, and thus with proper design and engineering should able to produce the highest strength part with the lightest weight.

Commercially available high strength Titanium Alloy (Ti64or Ti6Al4V, Grade 5).

With intensive experience in Titanium alloy processing and field application feedbacks, grade 5 Titanium alloy is a feasible solution for rust-free, heat and wet environment, and proven drop-in replacement of weight reduction by about 40-45%. The pros are good, the cons of Titanium is the cost of material and processing cost. Difficult processing is the main disadvantage of Titanium and its alloys. The cost of material is also relatively high (roughly 8-10 times more expensive than commercial steel alloys).

Aluminum Fasteners

Some manufacturers supply 7075-T6 aluminum alloy as fasteners material (wheel nuts). The reason behind this is the cost of aluminum processing is relatively cheap, rust-free, lightweight, surface finishing by anodizing with beautiful colors that are relatively easy to deal with. The disadvantage of aluminum fasteners is the ability to achieve strength in a heated environment. Imagine the strength of 7075-T6 aluminum alloy strength falls below half of its actual strength at elevated temperatures such as around 150 degrees centigrade (remember your wheel nuts is just next to the brake discs locate near the center of your wheel), it turns out aluminum wheel nuts is not a good idea. Many race tracks and motorsports have banned the use of aluminum wheel nuts is a high chance of casing wheels fallen off a race car under certain brake in corner scenario.

Quality Wheel Nuts & Bolts

Super quality wheel nuts & stud conversion kits, stainless alloy and titanium with super light weight

Super Light weight wheels

Super light weight custom forged wheels, just a click away

Heat Treated Stainless Alloy Steel

A new alloy processing technique has developed by PPE, a drop-in replacement for steel alloys and Titanium, at the expense of carefully controlled heat treatment and tempering process. With yield strength to around 1000MPa, and high shear strength (which is needed by threads), and a relatively better rust resistance than normal steel alloys.