If there is a gap between the bolts and nuts when they are fastened, the furniture will be shaken after a long time of use, which is likely to cause screw loosening.
In addition!Wood expands and shrinks when it's cold and hot, and the spring spacers provide a cushion.
Products name |
Ansi/Asme B 18.21.1 - 1983 Regular Helical Spring Lock Split Washers |
Material |
Brass, Stainless Steel, Steel, Alloy steel/Carbon steel/Stainless st |
Size |
2#-3inch |
Surface treatment |
Black/grey phosphate, zinc plated, nickel-plated, Rupert |
Application |
Heavy Industry, Mining, Retail Industry, General Industry, Oil & Gas, |
Style |
Box Packing+carton+pallets |
Size | ID(mm) | OD(mm) | Thickness(mm) | Unit weight,Kg/1000pcs | |||
min | max | min | max | min | max | ||
SAE NO.4 | 3.05 | 3.37 | 7.8 | 8.12 | 0.64 | 1.01 | 0.29 |
SAE NO.6 | 3.84 | 4.17 | 9.40 | 9.91 | 0.91 | 1.65 | 0.66 |
SAE NO.8 | 4.65 | 4.98 | 11.00 | 11.51 | 0.91 | 1.65 | 0.87 |
SAE NO.10 | 5.44 | 5.77 | 12.57 | 13.08 | 0.91 | 1.65 | 1.12 |
SAE NO.12 | 6.22 | 6.73 | 14.15 | 14.66 | 1.30 | 2.03 | 1.81 |
SAE 1/4 | 7.01 | 7.52 | 15.75 | 16.26 | 1.30 | 2.03 | 2.21 |
SAE 5/16 | 8.61 | 9.12 | 17.30 | 17.86 | 1.30 | 2.03 | 2.51 |
SAE 3/8 | 10.19 | 10.69 | 20.45 | 21.00 | 1.30 | 2.03 | 3.46 |
SAE 7/16 | 11.79 | 12.29 | 23.24 | 23.80 | 1.30 | 2.03 | 4.48 |
SAE 1/2 | 13.36 | 13.87 | 26.80 | 27.74 | 1.88 | 3.07 | 9.02 |
SAE 9/16 | 14.96 | 15.47 | 29.18 | 30.12 | 1.88 | 3.07 | 10.43 |
SAE 5/8 | 16.48 | 17.42 | 33.15 | 34.09 | 1.88 | 3.07 | 13.59 |
SAE 3/4 | 20.45 | 21.39 | 37.13 | 38.07 | 2.74 | 4.06 | 20.11 |
SAE 7/8 | 23.65 | 24.58 | 44.27 | 45.21 | 2.74 | 4.06 | 31.12 |
SAE 1 | 26.80 | 27.74 | 50.62 | 51.56 | 2.74 | 4.06 | 40.67 |
SAE 1-1/8 | 31.57 | 32.51 | 56.97 | 57.91 | 2.74 | 4.06 | 49.41 |
SAE 1-1/4 | 34.75 | 35.69 | 63.32 | 64.26 | 3.45 | 4.88 | 75.03 |
SAE 1-3/8 | 37.92 | 38.86 | 69.67 | 70.61 | 3.45 | 4.88 | 91.1 |
SAE 1-1/2 | 40.10 | 42.04 | 76.02 | 76.96 | 3.45 | 4.88 | 110.8 |
USS 3/16 NO.4 | 6.22 | 6.73 | 14.15 | 14.66 | 0.91 | 1.65 | 1.81 |
USS 1/4 | 7.80 | 8.41 | 18.47 | 19.02 | 1.30 | 2.03 | 3.04 |
USS 5/16 | 9.40 | 9.91 | 22.05 | 22.99 | 1.63 | 2.64 | 5.8 |
USS 3/8 | 11.00 | 11.51 | 25.22 | 26.16 | 1.63 | 2.64 | 7.42 |
USS 7/16 | 12.57 | 13.08 | 31.57 | 32.51 | 1.63 | 2.64 | 11.83 |
USS 1/2 | 14.15 | 14.66 | 34.75 | 35.69 | 2.18 | 3.35 | 18.3 |
USS 9/16 | 15.75 | 16.26 | 37.13 | 38.07 | 2.18 | 3.35 | 20.48 |
USS 5/8 | 17.30 | 18.24 | 44.37 | 45.21 | 2.74 | 4.00 | 36.57 |
USS 3/4 | 20.45 | 21.39 | 50.62 | 51.56 | 3.10 | 4.50 | 52.49 |
USS 7/8 | 23.65 | 24.58 | 56.97 | 57.91 | 3.45 | 4.88 | 71.75 |
USS 1 | 26.80 | 27.74 | 63.32 | 64.26 | 3.45 | 4.88 | 87.59 |
USS 1.1/8 | 31.57 | 32.51 | 69.67 | 70.61 | 3.45 | 4.88 | 102.44 |
USS 1.1/4 | 34.75 | 35.69 | 76.02 | 76.96 | 3.45 | 4.88 | 121.08 |
USS 1.3/8 | 37.85 | 39.24 | 82.30 | 83.69 | 3.89 | 5.41 | 159.73 |
USS 1.1/2 | 41.02 | 42.42 | 88.65 | 90.04 | 3.89 | 5.41 | 184.19 |
USS 1.5/8 | 44.20 | 45.59 | 95.00 | 96.39 | 3.89 | 5.41 | 210.36 |
USS 1.3/4 | 47.37 | 48.77 | 101.35 | 102.74 | 3.89 | 5.41 | 238.28 |
USS 1.7/8 | 50.55 | 51.49 | 107.70 | 109.09 | 3.89 | 5.41 | 267.92 |
USS 2 | 53.72 | 55.12 | 114.05 | 115.44 | 3.89 | 5.41 | 299.32 |
USS 2-1∕4 | 60.08 | 61.46 | 120.4 | 121.79 | 4.91 | 6.29 | 387.49 |
USS 2-1∕2 | 66.43 | 67.81 | 126.75 | 128.14 | 5.33 | 7.11 | 460.45 |
USS 2-3∕4 | 72.77 | 74.67 | 133.1 | 135 | 5.79 | 7.87 | 544.46 |
USS 3 | 79.12 | 81.02 | 139.45 | 142.35 | 6.32 | 8.3 | 631.12 |