Yonsin Titanium Bolts and Nuts for Motorcycle Rebuilds and Repairs

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Win with Promax

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Your Suspension Expert

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Philosophy

“ It's unwise paying too much, but worse paying too little. By paying too much, you lose a little money. By paying too little, you could lose everything, because what you've bought would be incapable of doing what it was bought for. The law of business balance prohibits paying a little and getting a lot. If you deal with the lowest bidder, it's wise to add a bit for the risk you run and if you do that, you can pay for something better. "

That said and with this in mind, Your Suspension Shop is servicing the motorcycle community in Australia and overseas as well as furthering the research, manufacture and development of top quality world class shock absorbers for racing purposes and casual driving without breaking your bank.

Your Suspension Shop (YSS)

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Rebuild and Repair with Yonsin Titanium Nuts and Bolts

Motorcycle Titanium Bolts - Make Your Racing Bike As Light As A Feather

Go To Yonsin Titanium Technical Information & Torque Specifications | Go To Yonsin Pictorial

Yonsin Special Parts Titanium Bolts are available to specifications of DIN912, DIN913, DIN931, DIN933, DIN6923 and ISO7380, UNC, UNF and Titanium Nuts to specifications of DIN934, DIN6921 etc... For further information and to order please give us a call on +61 (08) 8284 8033 to assist you in choosing the right nuts and bolts for your project or contact us by E-Mail.
NOTE: Prices shown are in Australian Dollars per piece. For trade orders and packs of ten or more: please call or email for special rates.

Technical Information & Torque Specifications

Go To Yonsin PRICES | Go To Yonsin Pictorial

All of Yonsin bolts are made with aircraft grade Titanium Alloy. One of the outstanding benefits of Yonsin bolts is that they forge the heads for superior strength. The threads are then rolled to produce greater fatigue strength and reduce galling.

The bolts exceed minimum Ultimate Tensile Strength (UTS) of 120,000 psi. Yonsin can also make titanium bolts that exceed 160,000 psi in Ultimate Tensile Strength (UTS). Both styles of bolts conform to DIN and ASTM specifications. Titanium bolts can replace both grade 5 and grade 8 steel bolts which have minimum UTS requirements of 120,000 psi and 150,000 psi respectively. Metric bolts with an 8.8 rating can be replaced with titanium while bolts with a 10.9 rating can sometimes be replaced with titanium depending on intended use. Any bolts with a rating over 10.9 rating should not be replaced with titanium.

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Torque Accuracy on Fasteners

Screw threads appear to be a simple concept yet much confusion and inconsistency exist regarding torque values. The mechanics of the screw thread are actually very complex and have numerous interacting variables. Sliding friction is affected by materials (like steel or aluminum on titanium), surface roughness, bearing area, material hardness, lubrication and so on.

Method	Accuracy
By Feel	+/- 35%
Torque Wrench	+/- 25%
Turn-of-nut	+/- 15%
Preload washers	+/- 10%
Bolt elongation	+/- 3%
Strain gauges	+/- 1%

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Recommended Torque Spec's for Titanium Fasteners

Use torque values specified by your equipment manufacture, when available. For titanium fasteners the torque values are listed below. We recommend anti-seize or moly paste be applied to the threads. If you have a specified torque value outside the Yonsin range give us a call so that we may be able to more clearly understand your application and provide specific solutions if one exists for the use of titanium in your assembly.

The importance of correct application cannot be overemphasized. Undertorque can result in unnecessary wear of nuts and bolts as well as the parts they hold together. When insufficient pressures are applied, uneven loads will be transmitted throughout the assembly which may result in excessive wear or premature failure due to fatigue. Overtorque can be equally damaging because of failure of the bolt or nut from overstressing the thread areas.

Torque Limits for Metric Size Bolts in Tension (For bolts in shear reduce the values shown below by 30-40%)
Non-lubricated			Lubricated
	Torque	Torque		Torque	Torque
Bolt Size	Min.	Max.	Bolt Size	Min.	Max.
M6-1.00	80 in-lbs	100 in-lbs	M6-1.00	72 in-lbs	90 in-lbs
M8-1.25	120 in-lbs	145 in-lbs	M8-1.25	108 in-lbs	130 in-lbs
M10-1.25	200 in-lbs	255 in-lbs	M10-1.25	180 in-lbs	230 in-lbs
M10-1.5	160 in-lbs	185 in-lbs	M10-1.5	144 in-lbs	148 in-lbs
Torque Limits for American Size Bolts in Tension (For bolts in shear reduce the values shown below by 30-40%)
Non-lubricated			Lubricated
	Torque	Torque		Torque	Torque
Bolt Size	Min.	Max.	Bolt Size	Min.	Max.
5/16-18	80 in lbs	90 in lbs	5/16-18	72 in lbs	81 in lbs
3/8-16	160 in lbs	185 in lbs	3/8-16	144 in lbs	148 in lbs
3/8-24	200 in lbs	250 in lbs	3/8-24	180 in lbs	225 in lbs
7/16-14	235 in lbs	255 in lbs	7/16-14	211 in lbs	229 in lbs
7/16-20	520 in lbs	630 in lbs	7/16-20	468 in lbs	567 in lbs
1/2-13	400 in lbs	480 in lbs	1/2-13	360 in lbs	432 in lbs
1/2-20	770 in lbs	950 in lbs	1/2-20	693 in lbs	855 in lbs

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Pictorial Overview of Yonsin Titanium Nuts and Bolts

Click on Images for Enlargement

Go To Yonsin PRICES | Go To Yonsin Titanium Technical Information & Torque Specifications

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Need some Motorcycle Part Upgrades?
Shop online for Shock Absorbers, Front Fork Springs,
Mono Shock Springs, PD Valves and Hyperpro Suspension.

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Suspension For Any Winning Motorcycle

Your Suspension Shop has a vast range of products at hand - ready made and also customised for any motorcycle. Feel free to call YOUR SUSPENSION SHOP to discuss a solution for your technical needs.

Phone +61 (08) 8284 8033