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INCH CATALOG C D B A PERFECTION IN DEFLECTION Table of Contents Letter from the President 3 Automation Locknuts 4,5 CollarPlus™ Locknuts 6 Flange Center Locknuts 7 TechPlus™ Locknuts 8 Finished Hex Center Locknuts 9 Jam and Machine Screw Top Locknuts 10 Acorn and Special Locknuts 11 Technical Information 12 Locknut Specifications 16 13 Locknut Applications 16 14 16 2 Letter from the President From Aztech’s inception, quality has been our consistent theme. We have engineered quality into every facet of the company’s work. We think quality products and productivi- ty go hand in hand, so we build solid relationships with our customers by always striving to be your partner in productivity. True partnerships are not built overnight, but take time to develop. At Aztech, we believe that trust, commitment and an understanding of your individual needs are the founda- tion blocks to building a lasting and mutually beneficial relationship. One of the great resources Aztech offers is being a single source for all your locknut and freespinning nut needs, from basic standards to fully custom designs. We reduce the time required to purchase and inspect nuts and locknuts. Your Aztech team stands ready to serve your every need with the broadest selection of quality nuts and attentive personal service. Let us deliver Perfection In Deflection... to you. Mark Kaindl President Aztech Locknut Company All sales by Aztech Locknut Company are made pursuant to the terms and conditions in effect during the time of deliv- ery. Aztech Locknut Company shall not be held liable to the buyer or anyone else for any defect in goods that results in personal injury, death, property damage, loss of use or replacement costs. Remedies to buyer under these circumstances is provided at the discretion of Aztech Locknut Company. 3 Automation Locknuts The top thread section of the Automation Locknut is precisely displaced at two 180° opposing areas. This deflection ovalizes the top threads of the nut and bends these threads out of their helical configuration. This locking element remains springlike through repeated applications and severe shock loads. The Automation Locknut starts freely on a bolt or stud like a common nut until the deflected thread portion is reached. It then requires wrenching to a final position anywhere on the mating part. The pronounced chamfer on the top of the nut makes it easily sorted by sight, feel or selective devices and it is clearly visible that the end product is safe-guarded by a locknut. GRADE C The Automation Locknut is precision manufactured on cold and hot forming equipment to ensure uniform bearing area and a chamfered top, thereby giving consistent prevailing torque results. W SIZE Grade C Automation Locknut, Grade C, Cadmium Plated * W T WEIGHT/ SIZE PART NUMBER WIDTH ACROSS FLATS THICKNESS 1000 PCS. MAX MIN MAX MIN STEEL 1/4-20 25CALNCC .438 .428 .226 .212 6.7 1/4-28 25FALNCC .438 .428 .226 .212 6.7 5/16-18 31CALNCC .500 .489 .273 .258 9.8 5/16-24 31FALNCC .500 .489 .273 .258 9.8 3/8-16 37CALNCC .562 .551 .337 .320 14.5 T 3/8-24 37FALNCC .562 .551 .337 .320 14.5 7/16-14 43CALNCC .688 .675 .385 .365 25.0 7/16-20 43FALNCC .688 .675 .385 .365 25.0 1/2-13 50CALNCC .750 .736 .448 .427 34.8 1/2-20 50FALNCC .750 .736 .448 .427 34.8 9/16-12 56CALNCC .875 .861 .496 .473 53.7 9/16-18 56FALNCC .875 .861 .496 .473 53.7 5/8-11 62CALNCC .938 .922 .559 .535 70.2 5/8-18 62FALNCC .938 .922 .559 .535 70.2 3/4-10 75CALNCC 1.125 1.088 .665 .617 120.0 3/4-16 75FALNCC 1.125 1.088 .665 .617 120.0 7/8-9 87CALNCC 1.312 1.269 .776 .724 207.0 7/8-14 87FALNCC 1.312 1.269 .776 .724 207.0 1-8 100CALNCC 1.500 1.450 .887 .831 260.0 1-14 100FALNCC 1.500 1.450 .887 .831 260.0 MEETS MIL. SPEC. 51943 * COMMON PARTS CHARTED, OTHER FINISHES AND MATERIALS AVAILABLE. 4 Advantages Fully Reusable - multiple times without appreciable loss in locking torque. Rugged - all-metal, one-piece construction withstands severe vibration and shock loads common in equipment and vehicles. Lock on Top - allows nut to be quickly threaded almost all the way on the bolt before wrenching is required. Spring Action of Lock - permits locking efficiency over the entire range of bolt thread tolerances. GRADE A W Grade A•B SIZE Automation Locknut, Grade A, Zinc Plated * GRADE B W T WEIGHT/ SIZE PART NUMBER WIDTH ACROSS FLATS THICKNESS 1000 PCS. MAX MIN MAX MIN STEEL 1/4-20 25CALNAZ .438 .428 .226 .212 6.7 5/16-18 31CALNAZ .500 .489 .273 .258 9.8 3/8-16 37CALNAZ .562 .551 .337 .320 14.5 7/16-14 43CALNAZ .688 .675 .385 .365 25.0 T 1/2-13 50CALNAZ .750 .736 .448 .427 34.8 *COMMON PARTS CHARTED, OTHER FINISHES AND MATERIALS AVAILABLE. W FINE THREADS AND LARGER DIAMETERS OFFERED AS TECH LOCK™ NUT, PAGE 11. SIZE Automation Locknut, Grade B, Zinc Plated * W T WEIGHT/ SIZE PART NUMBER WIDTH ACROSS FLATS THICKNESS 1000 PCS. MAX MIN MAX MIN STEEL 1/4-20 25CALNBZ .438 .428 .257 .243 8.0 1/4-28 25FALNBZ .438 .428 .257 .243 8.0 5/16-18 31CALNBZ .500 .489 .302 .292 10.8 T 5/16-24 31FALNBZ .500 .489 .302 .292 10.8 3/8-16 37CALNBZ .562 .551 .377 .360 16.0 3/8-24 37FALNBZ .562 .551 .377 .360 16.0 7/16-14 43CALNBZ .688 .675 .430 .410 29.8 7/16-20 43FALNBZ .688 .675 .430 .410 29.8 1/2-13 50CALNBZ .750 .736 .510 .490 38.5 1/2-20 50FALNBZ .750 .736 .510 .490 38.5 9/16-12 56CALNBZ .875 .861 .555 .535 58.5 9/16-18 56FALNBZ .875 .861 .555 .535 58.5 5/8-11 62CALNBZ .938 .922 .645 .621 78.9 5/8-18 62FALNBZ .938 .922 .645 .621 78.9 3/4-10 75CALNBZ 1.125 1.088 .750 .702 120.0 3/4-16 75FALNBZ 1.125 1.088 .750 .702 120.0 7/8-9 87CALNBZ 1.312 1.269 .862 .810 231.6 7/8-14 87FALNBZ 1.312 1.269 .862 .810 231.6 1-8 100CALNBZ 1.500 1.450 .958 .902 278.0 1-14 100FALNBZ 1.500 1.450 .958 .902 278.0 MEETS MIL. SPEC. 51922 (WHEN CAD PLATED) *COMMON PARTS CHARTED, OTHER FINISHES AND MATERIALS AVAILABLE. 5 CollarPlus™ Locknuts By ovalizing a precision manufactured collar at two 180° opposing points, a spring-like locking element is developed. The collar locknut retains consistent locking torque through repeated applications. By deflecting the thinner top wall of the nut, the nut body and bottom threads remain unaffected by the locking process. The collar locknut starts freely on a bolt or stud until the locking element is reached, it then requires torquing to its final position. Collar locknuts have proven to be most effective when used in applications requiring large diameters, high strength and light weight. GRADE C COLLARPLUS Grade C Full CollarPlus Locknut, Grade C, Cadmium Plated * W T WEIGHT/ SIZE PART NUMBER WIDTH ACROSS FLATS THICKNESS 1000 PCS. MAX MIN MAX MIN STEEL 11/8-7 112CFROCC 1.687 1.631 0.999 0.939 353.8 11/8-12 112FFROCC 1.687 1.631 0.999 0.939 346.1 11/4-7 125CFROCC 1.875 1.812 1.094 1.030 480.0 11/4-12 125FFROCC 1.875 1.812 1.094 1.030 470.0 13/8-6 137CFROCC 2.062 1.994 1.206 1.138 671.4 13/8-12 137FFROCC 2.062 1.994 1.206 1.138 675.1 11/2-6 150CFROCC 2.250 2.175 1.317 1.245 820.0 11/2-12 150FFROCC 2.250 2.175 1.317 1.245 800.0 13/4-5 175CFROCC 2.625 2.538 1.540 1.460 1400.0 13/4-12 175FFROCC 2.625 2.538 1.540 1.460 1314.3 2-41/2 200CFROCC 3.000 2.900 1.763 1.675 2050.0 2-12 200FFROCC 3.000 2.900 1.763 1.675 1950.0 21/4-41/2 225CFROCC 3.375 3.275 2.016 1.920 2850.0 21/4-12 225FFROCC 3.375 3.275 2.016 1.920 2750.0 21/2-4 250CFROCC 3.750 3.620 2.239 2.135 3910.0 21/2-12 250FFROCC 3.750 3.620 2.239 2.135 3800.0 3-4 300CFROCC 4.500 4.350 2.685 2.565 6650.0 3-12 300FFROCC 4.500 4.350 2.685 2.565 6460.0 Thin CollarPlus Locknut, Grade C, Cadmium Plated * 11/8-7 112CTROCC 1.687 1.631 0.639 0.579 230.0 11/8-12 112FTROCC 1.687 1.631 0.639 0.579 225.0 11/4-7 125CTROCC 1.875 1.812 0.751 0.687 332.0 11/4-12 125FTROCC 1.875 1.812 0.751 0.687 332.0 13/8-6 137CTROCC 2.062 1.994 0.815 0.747 415.0 13/8-12 137FTROCC 2.062 1.994 0.815 0.747 400.0 11/2-6 150CTROCC 2.250 2.175 0.880 0.808 566.6 11/2-12 150FTROCC 2.250 2.175 0.880 0.808 544.4 *COMMON PARTS CHARTED, OTHER FINISHES AND MATERIALS AVAILABLE.