This document contains technical specifications and dimensional data for L-COM D-Subminiature Jackscrews and associated hardware.
L-COM, INC.
Jackscrew: Brass (Nickel Plated)
Hex Nut: Steel (Nickel Plated)
Lock Washer: Steel (Nickel Plated)
4-40 UNC-2B
Seal 50 Jackscrews, 50 Lock-Washers, and 50 Hex Nuts in accordance with L-COM Specification PS-0031.
| Part Number | Dim - A (in/mm) | Dim - B (in/mm) | Dim - C (in/mm) | Dim - D (in/mm) |
|---|---|---|---|---|
| SDG250 | 2.32 [5.89] | 2.50 [6.35] | 0.193 [4.90] | 0.205 [5.21] |
| SDG300 | 2.32 [5.89] | 3.00 [7.62] | 0.193 [4.90] | 0.205 [5.21] |
| SDG400 | 2.32 [5.89] | 0.400 [10.14] | 0.193 [4.90] | 0.205 [5.21] |
| SDG400S | 0.197 [5.00] | 0.400 [10.16] | 0.154 [3.91] | 0.166 [4.22] |
| SDG400XS | 0.160 [4.06] | 0.400 [10.16] | 0.094 [2.39] | 0.106 [2.70] |
| SDG450XS | 0.160 [4.06] | 0.450 [11.43] | 0.094 [2.39] | 0.106 [2.70] |
| SDG500 | 2.32 [5.89] | 0.500 [12.70] | 0.193 [4.90] | 0.205 [5.21] |
| Product Description | Thread | Hex Nut Size | Jackscrew Size | Lock Washer Size |
|---|---|---|---|---|
| HEX NUT | 4-40 UNC-2B | 0.188+0.008 [4.76+0.20] | ||
| JACK-SCREW | 4-40 UNC-2B | 0.08+0.01 [2.03+0.25] | ||
| SPLIT LOCK-WASHER | 4-40 UNC-2A | 0.118+0.010 [3.00+0.25] | ||
| HEX NUT | 4-40 UNC-2B | 0.375 [9.53] | ||
| JACK-SCREW | 4-40 UNC-2B | 0.188+0.008 [4.76+0.20] | ||
| LOCK WASHER | 0.05+0.02 [1.27+0.51] |
