About Us

MATING PARTS

GRADE & CLASS COMPATABILITY FOR ALL LOCKNUTS

Matching similar materials is the most important design criteria for a trouble free all-metal locknut assembly.  In a mismatched materials assembly, the softer component is forced to conform to the harder component threads causing particle break off.  When enough particulate is removed, loss of torque or galling will occur depending contributing conditions.

IFI 100/107 recommendations:

NUT GRADE BOLT GRADE
A 2, > 90
B 5, > 120
C 8, < 105 & > 150
G 8, < 120 & > 150


IFI, ANSI B18.16.1M recommendations:

NUT CLASS BOLT CLASS
5 5.8 & lower
9 9.8, 8.8 & lower
10 10.9, 9.8 & 8.8

STARTING THREAD REQUIREMENTS FOR ALL LOCKNUTS
A common cause of torque spike occurs when the deflected thread locking element first encounters the male thread is missing or reduced chamfer. After the initial spike, a loss of torque or galling will typically follow depending upon contributing conditions. When designing & specifying male threads for mating to all-metal locknuts the following recommendation is essential.

IFI 100/107 recommendations:
The bolts shall be pointed in accordance with the dimensional requirements for hex cap screws as given in ASME B 18.2.1. The thread surface shall be free of burs or other contamination that might affect the accurate determination of the prevailing-torque developed by the nut.
 
MALE THREAD NICKS, TAPER AND FINISH QUALITY FOR ALL LOCKNUTS
While they may not cause problems on free spinning nuts, male threads with any of the following non-conformances can cause torque to be reduced or amplified depending upon contributing conditions.
• nicks,
• tapers,
• rough finish,
• surface decarb of medium carbon parts,
• incomplete threads.

EFFECTS OF PLATING & COATINGS ON ALL-METAL LOCKNUT THREAD FIT
Most electroplating layers are thin (.0005 to .0003) and have no meaningful effect on thread fit. Organic type plating finishes are thick in comparison (.0003 to .0006). Unless these thicker coatings are accommodated in the assembly, high torque or galling are likely to occur.

EFFECTS OF ELECTROPLATING ON ALL-METAL LOCKNUT PREVAILING TORQUE
Each plating type has a coefficient of friction. When either or especially both the all-metal locknut and the mating part are plated with finishes with low coefficients of friction, torque values will be somewhat higher than when components have higher coefficients of friction. Aztech Locknut products are engineered to perform well within specifications when used with all common electroplating finishes.

EFFECTS OF LUBRICANTS ON ALL-METAL LOCKNUT PREVAILING TORQUE AND CLAMP LOAD
The vast majority of specifications for all-metal locknuts require the use of a dry lubricant. The dry lubricant, typically a wax variant, reduces torque spikes and galling. Dry lubricants are available with various levels of friction coefficients. It is important to know how the lubricant is affecting the clamp load, especially in applications where high clamp loads are required. Aztech can provide testing of the assembly components in a "real life" simulation to assure the desired results are achieved.

cheap nfl jerseys wholesale nfl jerseys discount nfl jerseys nike free run 3 nike air max 90 cheap nike running shoes cheap Nike free nike free run roshe run buy cheap air max 90 shoes Wholesale Jerseys Free Shipping Wholesale NFL Jerseys cheap NFL Jerseys Wholesale Jerseys Free Shipping Wholesale NFL Jerseys cheap NFL Jerseys cheap nfl football jerseys nhl hockey jerseys mlb baseball jerseys cheap Nike free nike shoes cheap nike free run 2 cheap free run nike free run cheap nike free nike free australia nike free run cheap nike free run nike free run shoes cheap gucci belts cheap fendi belts cheap louis vuitton belts Wholesale NFL Jerseys Cheap NFL Jerseys From China Buy Nike NFL Jerseys Cheap jerseys cheap Nike free nike shoes cheap nike free run 2 cheap nike free run Nike free roshe run pas cher femme cheap nike free nike free run Cheap Gucci Belts Louis Vuitton Belts Sale Replica Fendi Belts Online NBA Jerseys Cheap NBA Jerseys wholesale NBA Jerseys Cheap Gucci Belts cheap Fendi Belts cheap Louis Vuitton Belts cheap nfl jerseys wholesale nfl jerseys discount nfl jerseys cheap nfl jerseys from china louis vuitton handbags louis vuitton outlet cheap louis vuitton wallet cheap louis vuitton bags cheap louis vuitton outlet nike roshe run noir roshe run pas cher femme cheap nfl jerseys Wholesale nfl jerseys discount nfl jerseys Cheap nfl jerseys From China nfl jerseys china nfl jerseys cheap Cheap nfl jerseys From China cheap louis vuitton louis vuitton outlet louis vuitton outlet store louis vuitton outlet online louis vuitton sale Louis Vuitton handbags Louis Vuitton wallet Louis Vuitton purses Cheap Gucci Belts Louis Vuitton Belts Sale Replica Fendi Belts Online replica gucci belts cheap gucci belts fake gucci belts gucci belts cheap nike free run 2.0 nike free run 3 womens pink Nike Free Run 5.0 nike free run cheap nike free run nike running shoes Nike Free Mens Shoes Nike Free Womes Shoes 2015 Nike Free Run Neon Pink Buy Nike Free Run Neon Pink Cheap Nike Free Run Neon Pink nike free run cheap nike free run nike free australia Nike Free Shoes Free Runnning shoes Nike Free Run 3 Coral Nike Free Run 3 Womens Hot Punch Nike Free 4.0 V3 Nike Free Run Tiffany Blue Nike Free run black Nike free fiffany blue Gucci Belts Outlet Cheap LV Belts Sale YSL Belts Online Replica Gucci Belts Cheap YSL Belts Louis Vuitton Belts On Sale Gucci Belt On Cheap Louis Vuitton Belts Outlet Fake Fendi Belts Gucci Belts Outlet Authentic Hermes LV Belts For Men Cheap Gucci Louis Vuitton Belts Prada Belts online Cheap Gucci Belts outlet Replica Gucci Belts Cheap Fendi Belts LV Belts Outlet wholesale Armani belt ED Hardy belt Cheap Hermes Belts Wholesale Hermes Belts Outlet cheap nba jerseys wholesale cheap nba jerseys for sale cheap nba jerseys from china replica nba jerseys authentic replica nba jerseys replica nba jerseys wholesale Signature basketball jerseys wholesale nba jerseys cheap nba jerseys Andrew Wiggins jerseys cheap Andrew Wiggins jerseys Wiggins jerseys cheap Wiggins jerseys top nba draft pick jersey wholesale store jerseys wholesaler nba jersey sales in china wholesale nba jerseys china Cheap NBA Shorts Jerseys from china Cheap NBA Shorts Jerseys wholesale nba jerseys wholesale nba jerseys from china wholesale nba jerseys cheap cheap nba jerseys cheap adidas nba jerseys wholesale nba jerseys cheap nba jerseys china cheap nba jerseys cheap nba jerseys from china Discount nba jerseys Discount nba jerseys from china wholesale nba jerseys free shipping wholesale nba jerseys china Cheap nba jerseys supplier nba jerseys supplier wholesale nba jerseys supplier Cheap louis vuitton outlet discount sale louis vuitton outlet louis vuitton handbags louis vuitton outlet louis vuitton wallet louis vuitton outlet store louis vuitton outlet online louis vuitton 2014 buy louis vuitton handbags louis vuitton cruise 2014 bags Discount louis vuitton sale Discount louis vuitton for sale Louis Vuitton outlet louis vuitton bags Cheap Louis Vuitton Handbags Louis Vuitton Handbags 2014