Circular Posts, Both End Stepped, Both end Tapped, Length Configurable

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.

Type Both Ends Tapped		Material	Surface Treatment	D (mm)	L (mm)
Stepped Part Fixed	Stepped Part & Wrench Flats Configurable
E-NETJ	E-NETJF	General structural steel or carbon steel	-	8~30	15~800
E-ETKJ	E-ETKJF		Ferroferric Oxide Protective Film
E-PETJ	E-PETJF		Electroless Nickel Plating
E-SETJ	E-SETJF	Austenitic stainless steel	-

If there are requirements for rust prevention, give priority to the products with surface treatment of electroless nickel plating and products made of austenitic stainless steel. Please click Anti-Rust Method.
Anti-rust Oil is applied on products made of general structural steel or carbon steel.
The area around the wrench flats may become glossy due to polishing.
L+E(G)+F(H)≥M×2+N×2

■Both ends tapped

Part Number			L 1mm increments	SC 1mm increments With wrench flats only	M (Coarse Thread) · N (Coarse Thread) Selection								G 1mm increments	H 1mm increments	E	F	P	V	W	ℓ1
Type		D
Stepped part selectable General structural steel or carbon steel E-NETJ E-ETKJ E-PETJ Austenitic stainless steel E-SETJ	Stepped part & wrench flats configurable General structural steel or carbon steel E-NETJF E-ETKJF E-PETJF Austenitic stainless steel E-SETJF	8	15～200	0～192	3	4							2～4	2～4	4	4	6	6	7	8
		10	15～400	0～392	3	4	5						2～5	2～5	5	5	8	8	8
		12	20～500	0～490		4	5	6					2～6	2～6	6	6	10	10	10	10
		15	25～600	0～590			5	6	8				2～8	2～8	8	8	12	12	13
		20	40～600	0～590			5	6	8	10	12		2~10	2~10	10	10	16	16	17
		25	55～700	0～690			5	6	8	10	12	16	2~12	2~12	12	12	20	20	22
		30	55～800	0～785			5	6	8	10	12	16	2~16	2~16	16	16	24	24	27	15

L Dimension tolerances are as follows:
L 15-300 ±0.2
L300.5-600 ±0.3
L600.5-800 ±0.4.

Feature 1: The length and thread of the round post can be freely specified to accommodate different operating environments.
Feature 2: Available in 2 types of materials: general structural steel, austenitic stainless steel.
Feature 3: Available in 2 types of surface treatments: ferroferric oxide protective film (blackening), electroless nickel plating.
Feature 4: Products with surface treatment (electroless nickel plating) and material (austenitic 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.

①Fastening 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.
②Anti-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 austenitic 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.

For applicable tightening torque for bolts, clickTorque Table
For bolt strength, clickBolt Strength Table
For anti-rust performance of metal materials and surface treatment, clickAnti-rust Performance Table