ISO 4755

Fasteners – Thread undercuts for external metric ISO threads

English 1983
0.000
ISO
Detailed Information

This International Standard lays down the form and dimensions of thread undercuts for bolts, screws and similar externally threaded products, recommended for use in those cases where an undercut is needed for threaded components such as plugs, unless otherwise specified in the appropriate product standard.

Download File
(Log in to download spec.)

Check out other specifications

ASTM
Abstract of ASTM A449
2000
English

QUENCHED AND TEMPERED STEEL BOLTS AND STUDS

This specification covers the chemical and mechanical requirements for two types of quenched and tempered steel bolts and studs for general applications where high strength is required.
DIN
DIN 50979
2008
English

Metallic coatings – Electroplated coatings of zinc and zinc alloys on iron or steel with supplementary Cr(VI)-free treatment

This standard applies for electrodeposited and Cr(VI)-free passivated zinc coatings and zinc alloy coatings on iron materials. The zinc alloy coatings contain nickel or iron (zinc/nickel, zinc/ [...]
JIS
JIS B 0209-5
2001
English

ISO general purpose metric screw threads — Tolerances — Part 5: Limits of sizes for internal screw threads to mate with hot-dip galvanized external screw threads with maximum size of tolerance position h before galvanizing

This Standard specifies deviations and limits of sizes for pitch and crest diameters for ISO general purpose metric internal screw threads conforming to JIS B 0205-3 having basic profile accord [...]
ISO
ISO 1234
1976
English

Split pins – Metric series

This International Standard specifies the dimensions of split pins of the metric series.
DIN
DIN 936
1976
English

Hexagon Thin Nuts (Old Type)

Hexagon nuts according to this Standard are still specified for a period not as yet determined for replacement needs and for existing designs only. For new designs, hexagon nuts according to D [...]
DIN
DIN 611
1990
English

Overview of standards for rolling bearings

This standard provides an overview of DIN Standards dealing with rolling bearings and related International Standards.
ISO
ISO 7415
1984
English

Plain washers for high-strength structural bolting, hardened and tempered

This International Standard specifies those hardened and tempered circular washers intended for assembly with large series hexagon high-strength structural bolts and nuts of diameters from M12 [...]
DIN EN
DIN EN 28738
1992
English

Plain washers for use with clevis pins, product grade A (ISO 8738 : 1986) English version of DIN EN 28 738

This International Standard specifies the characteristics of plain washers for clevis pins according to ISO 2340 and ISO 2341. Plain washers in accordance with this International Standard shal [...]
NASM
NASM 35206
2004
English

SCREW, MACHINE-PAN HEAD, CROSS-RECESSED, CARBON STEEL, CADMIUM PLATED, UNC-2A

THREADS SHALL BE IN ACCORDANCE WITH FED-STD-H28/2. ACCEPTABILITY OF SCREW THREADS SHALL BE IN ACCORDANCE WITH FED-STD-H28/20, SYSTEM 21.