Round Posts One End Threaded, One End Tapped, Length and Thread Length Configurable

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MISUMI
Product Overview
Round post is a common processing component, with the functions of connection, fastening, support, separation and so on, mainly used in various fastening and supporting mechanisms.
At the same time, there are a variety of materials to choose from, allowing it to be widely used in automation, electronics and electrical appliances, medical treatment, communication and other fields.
At the same time, there are a variety of materials to choose from, allowing it to be widely used in automation, electronics and electrical appliances, medical treatment, communication and other fields.
Dimensional Drawing

Specifications Overview
| Type | Material | Surface Treatment | D(mm) | L(mm) | |
| Standard | With Wrench Slot Type | ||||
| E-NETH | E-NETHS | General Structural Steel or Carbon Steel | - | 5 to 50 | 15 to 1000 |
| E-ETKH | E-ETKHS | Black Oxide | |||
| E-PETH | E-PETHS | Electroless Nickel Plating | |||
| E-SETH | E-SETHS | Stainless Steel | - | ||
If there are requirements for rust prevention, give priority to products with surface treatment of electroless nickel plating and those made of stainless steel. Please click
Rust Prevention Methods
Products made of general structural steel or carbon steel are coated with anti-rust oil.
Due to female thread processing, the D part of the female thread may sometimes be slightly raised.
There may be grinding gloss marks near the wrench slot on products without surface treatment.
SC ≤ L-ℓ1Specification Table
■ One end male thread, one end female thread, thread length specified
When L—SC ≤ N × 3, W—N ≥ 2 must be satisfied.
L ≥ N × 3+2
*D ≥ 35 Only applicable for E-N□□□□·E-E□□□□·E-P□□□□.
L size tolerance is as shown below.
L15–300 ±0.2
L300.5–600 ±0.3
L600.5–1000 ±0.4
| Part Number | Can be specified down to 0.5mm increments | M (Coarse) Male Thread Selection | N (Coarse Thread) Female Thread Selection | W | ℓ1 | A | |||||||||||||||||||||||
Type | D | L | F | SC With wrench slot only | |||||||||||||||||||||||||
| Male Thread on One End Female Thread on One End Thread Length Specification (Standard) General Structural Steel or Carbon Steel E-NETH E-ETKH E-PETH Stainless Steel E-SETH (With Wrench Slot Type) General Structural Steel or Carbon Steel E-NETHS E-ETKHS E-PETHS Stainless Steel E-SETHS | 6 | 15 to 100 | 5 to 30 | 0 to 92 | 3 | 4 | 5 | 3 | 4 | 5 | 8 | 1.0 | |||||||||||||||||
| 8 | 20 to 200 | 8 to 40 | 0 to 192 | 3 | 4 | 5 | 6 | 3 | 4 | 5 | 7 | 1.6 | |||||||||||||||||
| 10 | 20 to 400 | 8 to 45 | 0 to 392 | 3 | 4 | 5 | 6 | 8 | 3 | 4 | 5 | 6 | 8 | 2.0 | |||||||||||||||
| 12 | 25 to 500 | 10 to 55 | 0 to 490 | 4 | 5 | 6 | 8 | 10 | 4 | 5 | 6 | 8 | 10 | 10 | 2.5 | ||||||||||||||
| 15 | 30 to 600 | 12 to 60 | 0 to 590 | 5 | 6 | 8 | 10 | 12 | 5 | 6 | 8 | 10 | 13 | 3.0 | |||||||||||||||
| 20 | 40 to 600 | 15 to 75 | 0 to 590 | 5 | 6 | 8 | 10 | 12 | 16 | 5 | 6 | 8 | 10 | 12 | 17 | 3.5 | |||||||||||||
| 25 | 55 to 700 | 20 to 80 | 0 to 690 | 5 | 6 | 8 | 10 | 12 | 16 | 20 | 5 | 6 | 8 | 10 | 12 | 16 | 22 | 4.0 | |||||||||||
| 30 | 65 to 800 | 25 to 90 | 0 to 785 | 5 | 6 | 8 | 10 | 12 | 16 | 20 | 24 | 5 | 6 | 8 | 10 | 12 | 16 | 20 | 27 | 15 | 5.0 | ||||||||
| *35 | 80 to 900 | 30 to 100 | 0 to 885 | 6 | 8 | 10 | 12 | 16 | 20 | 24 | 6 | 8 | 10 | 12 | 16 | 20 | 24 | 30 | 15 | 6.0 | |||||||||
| *40 | 80 to 1000 | 35 to 110 | 0 to 980 | 8 | 10 | 12 | 16 | 20 | 24 | 8 | 10 | 12 | 16 | 20 | 24 | 36 | 20 | 6.0 | |||||||||||
| *50 | 80 to 1000 | 40 to 120 | 0 to 980 | 10 | 12 | 16 | 20 | 24 | 10 | 12 | 16 | 20 | 24 | 41 | 20 | 6.0 | |||||||||||||
When L—SC ≤ N × 3, W—N ≥ 2 must be satisfied.
L ≥ N × 3+2
*D ≥ 35 Only applicable for E-N□□□□·E-E□□□□·E-P□□□□.L size tolerance is as shown below.
L15–300 ±0.2
L300.5–600 ±0.3
L600.5–1000 ±0.4
Product Features
Feature 1: the length and thread of the round post can be freely specified to accommodate different operating environments.
Feature 2: 2 types of materials to choose from: general structural steel, stainless steel.
Feature 3: Two types of surface treatments available: black oxide (ferroferric oxide protective film) and electroless nickel plating.
Feature 4: products with surface treatment (electroless nickel plating) and material (stainless steel) for good anti-rust performance are widely used in precision equipment and dust-free environment.
Feature 5: with the main functions of connection, fastening, support and separation, it is often used in mechanisms with various frames as a connection and support component.
Feature 2: 2 types of materials to choose from: general structural steel, stainless steel.
Feature 3: Two types of surface treatments available: black oxide (ferroferric oxide protective film) and electroless nickel plating.
Feature 4: products with surface treatment (electroless nickel plating) and material (stainless steel) for good anti-rust performance are widely used in precision equipment and dust-free environment.
Feature 5: with the main functions of connection, fastening, support and separation, it is often used in mechanisms with various frames as a connection and support component.
Usage Method
| Intended Use | Support and fixing | Fastening and connection | Separation |
| Usage Method Diagram | ![]() | ![]() | ![]() |
| Features | - Can withstand large loads in the vertical direction - Minimum length tolerance specification selectable to ±0.05 mm, ensuring the stability of the mechanism | - Simple and aesthetic connection | - Connected to the baffle to effectively block the mechanism in operation and prevent interference - Easy to fasten and install in narrow spaces |
Precautions
(1) Fastening method of post
The post is generally fastened by torque method. For bolts, fasten them within the range of fastening torque, otherwise excessive torque will cause thread fracture.
(2) Anti-rust specification selection and maintenance
. If there are requirements for anti-corrosion performance, select products with surface treatment of electroless nickel plating or those made of stainless steel when choosing general structural steel products.
General structural steel posts without surface treatment are recommended to be stored in a constant-temperature and dry environment, and regularly applied with anti-rust oil for maintenance.
The post is generally fastened by torque method. For bolts, fasten them within the range of fastening torque, otherwise excessive torque will cause thread fracture.
(2) Anti-rust specification selection and maintenance
. If there are requirements for anti-corrosion performance, select products with surface treatment of electroless nickel plating or those made of stainless steel when choosing general structural steel products.
General structural steel posts without surface treatment are recommended to be stored in a constant-temperature and dry environment, and regularly applied with anti-rust oil for maintenance.
Example of Use
Application Industries
| Medical | Semiconductor | Electronic & Electrical Appliances | ||
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| Smart phone | Food | Automotive | ||
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Related Documents
Applicable Bolt Tightening Torque
Bolt Strength
Rust Resistance of Metal Materials and Surface Treatments
Bolt Strength
Rust Resistance of Metal Materials and Surface Treatments
Material
Surface Treatment
M (Coarse) Male Thread Selection
N (Coarse Thread) Female Thread Selection
Type
L
F
SC











