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Regular Type Lock Nuts

Design 1 - Single Notch

RegularTypeLockNutsDesign1.jpgRegularTypeLockNutsDesign1Diagram.jpg

Basic Part Numbers
Thread No.
 Hex Width
W (In.)
 Height
H (In.)
 Max. Across Corners
A (In.)
 Notch Design
 Rec. Torque (In. Lbs.)
 Average Resulting Tension (Lbs.) Weight Lbs./M Pieces
RM 440003 4-40 3/16 .068 .217 1 3 60 0.2
RM 440 4-40 1/4 .076 .289 1 5 80 0.3
RM 540004 5-40 1/4 .080 .289 1 5 120 0.3
RM 632004 6-32 1/4 .080 .289 1 7 130 0.3
RN 5811 5/8-11 1 .238 1.131 1 400 2000 13.5
RZ 5811 5/8-11 1 .201 1.131 1 400 2000 12.0
RZ 213300 5/8-11 Left Hand 1 .180 1.131 1 - - -
RZ 3410 3/4-10 1-1/8 .247 1.299 1 570 2200 15.2
RZ 001465 7/8-20 1-1/8 .142 1.299 1 - - 5.3

Design 2 - Single Notch with Five Shears


RegularTypeLockNutsDesign2.jpgRegularTypeLockNutsDesign2Diagram.jpg

Basic Part Numbers
Thread No.
 Hex Width
W (In.)
 Height
H (In.)
 Max. Across Corners
A (In.)
 Notch Design
 Rec. Torque (In. Lbs.)
 Average Resulting Tension (Lbs.) Weight Lbs./M Pieces
RM 632 6-32 5/16 .092 .361 2 9 130 0.6
RM 832 8-32 11/32 .099 .397 2 11 150 0.7
RM 103205 10-32 5/16 .094 .361 2 12 150 0.5
RM 1032 10-32 3/8 .105 .433 2 15 150 0.8
RM 1024 10-24 3/8 .105 .433 2 18 210 0.9

Design 3 - Six Notches


RegularTypeLockNutsDesign3.jpgRegularTypeLockNutsDesign1Diagram.jpg

Basic Part Numbers
Thread No.
 Hex Width
W (In.)
 Height
H (In.)
 Max. Across Corners
A (In.)
 Notch Design
 Rec. Torque (In. Lbs.)
 Average Resulting Tension (Lbs.) Weight Lbs./M Pieces
RP 1827 1/8-27NPS 9/16 .114 .650 3 60 350 1.8
RE 1432 1/4-32 7/16 .118 .505 3 17 200 1.1
RF 1428 1/4-28 7/16 .118 .505 3 30 250 1.2
RF 1420 1/4-20 7/16 .123 .505 3 38 350 1.5
RH 1420 1/4-20 1/2 .134 .578 3 38 400 2.3
RP 1418 1/4-18NPS 3/4 .130 .866 3 140 600 3.9
RF 51618 5/16-18 1/2 .134 .578 3 52 450 2.0
RP 3818 3/8-18NPS 15/16 .145 1.083 3 205 660 6.5
RF 3816 3/8-16 9/16 .145 .650 3 70 500 2.3
RR 3816 3/8-16 5/8 .156 .722 3 85 720 3.7
RH 71614 7/16-14 3/4 .168 .866 3 180 900 6.1
RF 1213 1/2-13 3/4 .179 .866 3 145 900 5.5
RF 5811 5/8-11 15/16 .213 1.083 3 330 1150 10.4
RR 5811 5/8-11 1 .224 1.155 3 370 1500 12.3
RF 3410 3/4-10 1-1/8 .246 1.299 3 530 1650 14.0
RH 3410 3/4-10 1-1/4 .269 1.443 3 640 1650 22.0
RH 18 1-8 1-5/8 .336 1.877 3 - - 47.4

Design 4 - Nine Notches


RegularTypeLockNutsDesign4.jpgRegularTypeLockNutsDesign1Diagram.jpg

Basic Part Numbers
Thread No.
 Hex Width
W (In.)
 Height
H (In.)
 Max. Across Corners
A (In.)
 Notch Design
 Rec. Torque (In. Lbs.)
 Average Resulting Tension (Lbs.) Weight Lbs./M Pieces
RF 51624 5/16-24 1/2 .129 .578 4 45 320 1.9
RE 3832 3/8-32 9/16 .094 .650 4 30 200 1.3
RE 3827 3/8-27 9/16 .094 .650 4 35 200 1.4
RF 3824 3/8-24 9/16 .140 .650 4 65 420 2.1
RE 71628 7/16-28 5/8 .111 .722 4 25 340 1.9
RH 71620 7/16-20 5/8 .150 .722 4 85 700 2.8
RE 153232 15/32-32 5/8 .090 .722 4 40 200 1.3
RF 1220 1/2-20 3/4 .172 .866 4 130 750 4.3
RF 1220 1/2-20 3/4 .172 .866 4 130 750 4.3
RF 91618 9/16-18 7/8 .193 1.010 4 180 900 6.7
RE 5832 5/8-32 3/4 .094 .866 4 65 280 1.5
RF 5818 5/8-18 15/16 .203 1.083 4 200 1000 7.2
RZ 001895 3/4-20 1-1/16 .100 1.227 4 - - 4.1
RZ 001464 3/4-20 1-1/16 .203 1.227 4 - - 6.3
RL 3416 3/4-16 1-1/16 .225 1.227 4 350 1150 10.0
RL 7814 7/8-14 1-1/4 .256 1.443 4 500 1400 15.7

Threaded Palnuts

Regular Type Lock Nuts


Product 7/10

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APEX FASTENERS, Inc - 15858 Business Center Drive - Irwindale, CA 91706 USA
APEX Fasteners supplies standard and custom screws, nut retainers, shoulder screws, plastites and taptites, all types of rivets, spring steel fasteners and special stampings, sems screws in standard, fractional or metric to electronics, aviation and other OEM industries worldwide. ApexFasteners.com custom manufactures screw machine components for electronic enclosure hardware as well as cold forming and cold headed specials for assembly and production requirements.
Tel: (626) 962-2219 - info@apexfasteners.com
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