Round rod spacers / plastic / internal thread

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MISUMI

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Back to the Category Distance elements (hexagonal, square, cylindrical)

Technical Drawing - Hexagonal Rods

Resin Circular Posts/One End Tapped:Related Image

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Available dimensions and tolerances can be found under the tab More information.

Basic Properties (e.g., material, hardness, coating, tolerance) - Hexagonal Rods

Type				Material	Color	Threaded Insert Material
One End Tapped	Both Ends Tapped	One End Threaded Insert	Both Ends Threaded Inserts	Material	Color	Threaded Insert Material
PHRF	PLRF	PHNRF	PLNRF	Polyacetal	White	EN 1.4301 Equiv.

Further specifications can be found under the tab More information.

Composition of a Product Code - Hexagonal Rods

Part Number	-	L	-	SC
PHRF10 PLNRF20	- -	300 400	- -	SC200 SC310

General Information - Hexagonal Rods

Spacer product assortment - square spacer - round spacer bolt - plastic spacer - hexagonal spacer - hexagonal spacer with centering pin

Selection details of spacers/spacers (hexagonal, square, cylindrical)

- Material: aluminum, steel, stainless steel, PMMA, PEEK

- Coatings: uncoated, burnished, chemically nickel-plated, anodized, chromated

- Basic shapes: hexagon, square, round

- End forms: straight, female thread, male thread, female thread with centering pin

- Outer diameter (round): 4 to 50 mm

- Spanner flat (hexagon, square): 4 to 32 mm

- Length: 5 to 800 mm

- Threads: M2 to M24

Description/Basics

Spacers are generally used as spacing connections. Due to their diversity, the wide range of design concepts can be realized with spacer bolts and practically every application can be realized using the appropriate spacer bolt.
The design and assembly of thin plates makes it extremely difficult to work with counterbores or internal threads. Therefore, spacer bolts are often used on plates, sheet metal or printed circuit boards (PCB).

The selectable assembly threads, the individually configurable length of the spacers, and the selectable length tolerance via the [LKC] option offer great design freedom compared to conventional mass-produced products. This advantage is particularly important if, for example, plates of different thicknesses or particularly thin plates are utilized.
For applications with particularly high positioning requirements, it is recommended to combine shim rings with a spacer. These can be configured in thicknesses from 0.01 to 1 mm and integrated as an additional compensating element.

The assembly of hexagonal spacers is particularly easy with the hex, since they can be held against one another with an open-ended spanner. With round spacer bolts, this can be realized with a spanner flat. The spacer bolts are also available with one-sided or two-sided internal thread (long nut). For precise positioning of a spacer bolt with an internal thread or external thread, MISUMI also offers a centering pin in the ISO tolerance h7.
This variety enables virtually barrier-free assembly of the components to be joined with screws, internal threads and external threads or nuts.

Application Examples - Hexagonal Rods

Application example: spacer - spacer bolt with external thread on both sides - spacer with mounting plate

Application example: spacer bolt with external thread
(1) Spacer bolts with external thread on both sides, (2) mounting plate, (3) nut

Application example spacer - spacer with two-sided internal thread - spacer with mounting plate

Application example: spacer bolts with internal thread
(1) Spacer with internal thread on both sides, (2) mounting plate, (3) screw

Application example: spacer - spacer with internal thread and external thread - spacer with centering pin - spacer with mounting plate

Application example: spacer with tappet
(1) Distance bolts with centering pin, (2) mounting plate, (3) nut, (4) screw

Application example spacer - spacer with inner thread and external thread - spacer with mounting plate

Application example: threaded spacer pin
(1) spacer bolts with internal thread and external thread, (2) mounting plate, (3) nut, (4) screw

Industrial Applications

3D printer industry

Automotive industry

Pharmaceutical industry

Packaging industry

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Part Number
PHNRF6-[20-50/1]-SC[0-42/1]
PHNRF8-[25-150/1]-SC[0-142/1]
PHNRF10-[30-350/1]-SC[0-342/1]
PHNRF12-[40-400/1]-SC[0-390/1]
PHNRF15-[50-500/1]-SC[0-490/1]
PHNRF20-[60-500/1]-SC[0-490/1]
PHNRF25-[80-600/1]-SC[0-590/1]
PHNRF30-[100-700/1]-SC[0-685/1]
PHRF6-[20-50/1]-SC[0-42/1]
PHRF8-[25-150/1]-SC[0-142/1]
PHRF10-[30-350/1]-SC[0-342/1]
PHRF12-[40-400/1]-SC[0-390/1]
PHRF15-[50-500/1]-SC[0-490/1]
PHRF20-[60-500/1]-SC[0-490/1]
PHRF25-[80-600/1]-SC[0-590/1]
PHRF30-[100-700/1]-SC[0-685/1]
PLNRF6-[20-50/1]-SC[0-42/1]
PLNRF8-[25-150/1]-SC[0-142/1]
PLNRF10-[30-350/1]-SC[0-342/1]
PLNRF12-[40-400/1]-SC[0-390/1]
PLNRF15-[50-500/1]-SC[0-490/1]
PLNRF20-[60-500/1]-SC[0-490/1]
PLNRF25-[80-600/1]-SC[0-590/1]
PLNRF30-[100-700/1]-SC[0-685/1]
PLRF6-[20-50/1]-SC[0-42/1]
PLRF8-[25-150/1]-SC[0-142/1]
PLRF10-[30-350/1]-SC[0-342/1]
PLRF12-[40-400/1]-SC[0-390/1]
PLRF15-[50-500/1]-SC[0-490/1]
PLRF20-[60-500/1]-SC[0-490/1]
PLRF25-[80-600/1]-SC[0-590/1]
PLRF30-[100-700/1]-SC[0-685/1]

Minimum order quantity	Standard Shipping Days ?	RoHS	O.D. D (φ)	Length L (mm)	Distance to Wrench Slot [SC] (mm)	Wrench Flats B (Circular) (mm)
1	7 Days	10	6	20 ～ 50	0 ～ 42	5
1	7 Days	10	8	25 ～ 150	0 ～ 142	7
1	7 Days	10	10	30 ～ 350	0 ～ 342	8
1	7 Days	10	12	40 ～ 400	0 ～ 390	10
1	7 Days	10	15	50 ～ 500	0 ～ 490	13
1	7 Days	10	20	60 ～ 500	0 ～ 490	17
1	7 Days	10	25	80 ～ 600	0 ～ 590	22
1	7 Days	10	30	100 ～ 700	0 ～ 685	27
1	7 Days	10	6	20 ～ 50	0 ～ 42	5
1	7 Days	10	8	25 ～ 150	0 ～ 142	7
1	7 Days	10	10	30 ～ 350	0 ～ 342	8
1	7 Days	10	12	40 ～ 400	0 ～ 390	10
1	7 Days	10	15	50 ～ 500	0 ～ 490	13
1	7 Days	10	20	60 ～ 500	0 ～ 490	17
1	7 Days	10	25	80 ～ 600	0 ～ 590	22
1	7 Days	10	30	100 ～ 700	0 ～ 685	27
1	7 Days	10	6	20 ～ 50	0 ～ 42	5
1	7 Days	10	8	25 ～ 150	0 ～ 142	7
1	7 Days	10	10	30 ～ 350	0 ～ 342	8
1	7 Days	10	12	40 ～ 400	0 ～ 390	10
1	7 Days	10	15	50 ～ 500	0 ～ 490	13
1	7 Days	10	20	60 ～ 500	0 ～ 490	17
1	7 Days	10	25	80 ～ 600	0 ～ 590	22
1	7 Days	10	30	100 ～ 700	0 ～ 685	27
1	7 Days	10	6	20 ～ 50	0 ～ 42	5
1	7 Days	10	8	25 ～ 150	0 ～ 142	7
1	7 Days	10	10	30 ～ 350	0 ～ 342	8
1	7 Days	10	12	40 ～ 400	0 ～ 390	10
1	7 Days	10	15	50 ～ 500	0 ～ 490	13
1	7 Days	10	20	60 ～ 500	0 ～ 490	17
1	7 Days	10	25	80 ～ 600	0 ～ 590	22
1	7 Days	10	30	100 ～ 700	0 ～ 685	27

Back to the Category Distance elements (hexagonal, square, cylindrical)

Technical Drawing - Hexagonal Rods

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Specification Tables - Hexagonal Rods

Part Number					L 1mm Increment	SC 1 mm Increment	M (Coarse)	W	ℓ₁
Type				D	L 1mm Increment	SC 1 mm Increment	M (Coarse)	W	ℓ₁
One End Tapped PHRF	Both Ends Tapped PLRF	One End Threaded Insert PHNRF	Both Ends Threaded Inserts PLNRF	6	20~ 50	0~ 42	M 3	5	8
				8	25~150	0~142	M 4	7
				10	30~350	0~342	M 5	8
				12	40~400	0~390	M 6	10	10
				15	50~500	0~490	M 8	13
				20	60~500	0~490	M10	17
				25	80~600	0~590	M12	22
				30	100~700	0~685	M16	27	15

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Basic information

Material	Polyacetal	Surface Treatment	Not Provided	Scale	W/o Scale
Pilot (Concave-Convex at End)	Not Provided

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Basic Attributes

O.D. D(φ)
6

8

10

12

15

20

25

30
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Length L(mm)
[20-700/1mm Unit(s)]
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Distance to Wrench Slot [SC](mm)
[0-685/1mm Unit(s)]
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Type
- PHNRF
- PHRF
- PLNRF
- PLRF
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7 Days or Less
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Optional Attributes

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Frequently Asked Questions (FAQ)

Question:
Do you also have hollow spacers?: Answer:
Spacers or spacer bolts are generally made of solid material. However, if a hollow spacer is required, MISUMI also offers spacer sleeves. These are configurable like the spacers and can be adapted to the required dimensions. For precise distance, we recommend selecting simultaneous grinding spacer sleeves.
Question:
Are the spacers stainless?: Answer:
The spacers and spacer bolts can be selected in stainless steel and in steel with surface coating. To select the coating, the spacers are available in burnished, chemically nickel-plated, clear anodized, chromated. Thus, depending on the application, the spacer bolts are protected against corrosion.
Question:
Do you have spacer bolts with an undercut?: Answer:
MISUMI offers an additional option [FC] the spacer bolts for an undercut. With this option, a cutout is added to the external thread of the spacer bolt. The dimensions of the cutout can be found in the overview as a PDF.