MS51958 fine-thread stainless pan-head screws.

// REFERENCE SIZES

MS51958 part-number and dimension table

Reference sizes for identification and quotation; availability is confirmed by inquiry. These rows do not indicate Webson stock.

Head diameter and height are minimum–maximum limits from the reviewed MS51958C reference. Length is nominal and measured beneath the head.

// LENGTH CONVENTION

Measure the correct length

Length is measured beneath the head to the tip. MS51958-13 is a 4-48 by 1/4-inch reference; MS51958-63 is a 10-32 by 1/2-inch reference. The reviewed drawing also contains 0-80 entries, outside this selected table. Historical manufacturer production annotations are not a statement of Webson inventory.

// ORDERING DETAILS

Keep finish and locking codes with the part

The reviewed MS51958C reference specifies 300-series corrosion-resistant steel and a cleaned and descaled surface treatment. A B following the dash number identifies black oxide; for example, MS51958-45B. The table lists unsuffixed reference sizes. Retain the finish and governing issue called out by your drawing.

// RELATED REFERENCES

Compare related screw families

// DRAWING REQUIREMENTS

Use the issue required by your drawing

Dimensions summarize MS51958C, sheets 1–2 (11 February 1983 revision markings). This is a selected purchasing reference. Send the complete part designation and governing specification issue for quotation; the required issue controls full dimensions, tolerances, material, finish and documentation.