Specifications
Our standard grooved pins conform to ANSI standard English sizes. Metric pins are also available as well as grooved pins that conform to the following specifications:
Grooved pins are specified by calling out type, units, diameter and length, material and finish.
Groov-pin may add a suffix for heat treatment or special requirements. Below is an example of a Groov-Pin part number:
Inspection Methods and Quality Commitment
Groov-Pin Corporation is committed to providing products of the highest quality which fully satisfy the needs of its customers. To do this, only the highest standards of engineering, manufacture process control and quality inspection are employed. Accurate measurement is critical to our quality control effort.
DIAMETER
Measure pin diameters, except expanded diameter, with micrometer.
Expanded diameter of grooved pins must be measured using a ring gauge. Micrometer readings of expanded diameter are not accurate.
LENGTH
Lengths are measured with either a micrometer or a caliper.
Overall pin length on crowned pins, as well as chamfered pins, is the dimension which is controlled. The length of the pin between crowns, or barrel length, can be estimated using calipers.
Click here to view a copy of ISO 9001:2008 certificate
Our standard grooved pins conform to ANSI standard English sizes. Metric pins are also available as well as grooved pins that conform to the following specifications:
- ASME B18.8.2
- NASM 35671 to NASM 35678
- NASM 51605
- DIN
- ISO
Grooved pins are specified by calling out type, units, diameter and length, material and finish.
Groov-pin may add a suffix for heat treatment or special requirements. Below is an example of a Groov-Pin part number:
| Pin Type | Units | |||
|
|
|
|||
| 1 | Full-Length Taper | E | English | |
| 2A | Half-Length | M | Metric | |
| 3H | Full-Length Parallel | |||
| 5 | Half-Length Center | Finish
|
||
| 24 | Quarter-Length Parallel | |||
| 67 | Half-Length Parallel with | 0 | Plain | |
| Annular Groove | 1 | Phosphate | ||
| 2 | Cadmium, SAE AMS-QQ-P-416 | |||
| Material | 3 | Brass | ||
|
|
4 | Zinc, ASTM B-633 | ||
| 1 | Low-Carbon Steel | 5 | Nickel | |
| 2 | Aluminum | 6 | Black Oxide | |
| 3 | Brass | 7 | Zinc Chromate, ASTM B-633 | |
| 4 | Monel | 8 | Cad Chromate, AMS-QQ-P-416 | |
| 5 | Corrosion Resistant Steel | 9 | Special | |
| 6 | Bronze | |||
| 7 | High Strength Alloy Steel | |||
| 8 | Beryllium Copper | |||
| Standard Lengths and Weights | ![]() |
| Weight per 1000 pieces for standard length steel grooved pins Click here to view Standard Lengths and Weights table |
| Standard Dimensions | ![]() |
| All standard pin dimensions along with recommended hole sizes for each Click here to view Standard Dimensions table |
| Expanded Diameters | ![]() |
| Shows expanded diameters for various groove lengths Click here to view Expanded Diameters table |
DIAMETER
Measure pin diameters, except expanded diameter, with micrometer.
Expanded diameter of grooved pins must be measured using a ring gauge. Micrometer readings of expanded diameter are not accurate.
LENGTH
Lengths are measured with either a micrometer or a caliper.
Overall pin length on crowned pins, as well as chamfered pins, is the dimension which is controlled. The length of the pin between crowns, or barrel length, can be estimated using calipers.
Click here to view a copy of ISO 9001:2008 certificate




