Description

YSK Precision Clasp Locknut. The YSK Series locknuts utilize the elasticity of the steel body itself, axial locking, and forced locking. With locking capabilities more than three times higher compared to traditional locknuts, this series is aimed at harsh working conditions where locknuts are easily loosened.

• Material Composition： SCM440(42CrMo4)
• Hardness： HRC28° ~32°
• Thread Precision： ISO 4H
• Manufacturing Method： High Precision Turning
• Run Out M16~200： 0.005mm
• Run Out M210~300： 0.007mm

Thread D h g n-m x L n b c MAX Nm YSK M16x1.5 34 18 29 4-M4x12 4 4 24 3.5 YSK M17x1 37 32 26 YSK M18x1.5 38 33 28 YSK M20x1 40 35 30 YSK M20x1.5 YSK M22x1.5 42 37 32 YSK M24x1.5 44 39 34 YSK M25x1.5 45 20 40 4-M4x14 5 35 YSK M26x1.5 YSK M28x1.5 46 43 37 YSK M30x1.5 48 45 39 YSK M32x1.5 50 22 47 4-M4x16 41 YSK M35x1.5 53 50 44 YSK M38x1.5 56 53 47 YSK M40x1.5 58 55 49 YSK M42x1.5 60 51 YSK M45x1.5 68 63 6-M4x18 6 6 57 YSK M48x1.5 69 25 65 58 YSK M50x1.5 70 66 60 YSK M52x1.5 72 68 62 YSK M55x1.5 75 71 65 YSK M55x2 YSK M58x1.5 82 26 77 6-M5x20 70 4.5 YSK M60x1.5 84 79 72 YSK M60x2 YSK M62x1.5 86 28 82 75 YSK M65x1.5 88 84 77 YSK M65x2 YSK M68x1.5 93 87 7 80 YSK M70x1.5 95 89 82 YSK M70x2 YSK M72x1.5 97 91 84 YSK M75x1.5 100 94 87 YSK M75x2 YSK M80x2 110 32 103 6-M6x22 8 95 8.0 YSK M85x2 115 108 100 YSK M90x2 120 113 105 YSK M95x2 125 118 110 YSK M100x2 130 123 115 YSK M105x2 135 128 120 YSK M110x2 140 133 125 YSK M115x2 145 34 137 130 YSK M120x2 155 36 146 6-M6x25 136 YSK M125x2 160 150 140 YSK M130x2 165 155 148 YSK M140x2 180 38 168 8-M6x25 8 10 160 YSK M150x2 190 178 170 YSK M160x3 205 40 190 8-M8x30 178 18.0 YSK M170x3 215 200 193 YSK M180x3 230 213 205 YSK M190x3 240 223 215 YSK M200x3 245 230 223 YSK M210x3 255 42 240 8 232 YSK M220x3 260   250 240 YSK M230x3 270   260 250 YSK M240x3 280   270 260 YSK M250x3 290   280 270 YSK M260x4 300 43 290 8-M10x30 12 280 35.0 YSK M270x4 310   300 290 YSK M280x4 320   300 300 YSK M290x4 330   310 310 YSK M300x4 340   320 320