N-Series Aluminum Frame - Series 5, Square, 20 × 20 mm, 4-Side Slots

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Product Description
Aluminum Frame Series 5/Slot width 6/20x20mm.
Aluminium Profile is a device used to build machine structures, available in various sizes,cross section shapes and with different types of surfaces treatment to choose from.
[Feature]
● Shape : Square.
● Slot width : 6 mm. /1 slot
● Cross-section : 20 mm. X 20 mm.
● Overall length :The size is configurable between 50 to 4000 mm, and the minimum length can be increased by increments 0.5 mm.
● Material : Aluminium grade A6N01SS-T and A6063S-T5
● Surface treatment: Clear/ Black Anodize, Clear Coating
[Application]
Used for automatic machine structures in various industries such as automotive industry, electronics industry, etc.
Cut surface and alteration sections are not surface treated.


*No tolerance regulation is specified
for L dimension of fixed length extrusions
| 5 Series |
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Slot Details
(Common to Series)
Slot Bottom Details
(NFS, NFSB, NFSF, NFST Type)
Enlarged View of A
The aluminum extrusion with 6 mm slot width and applicable to M5 bolts.
[ ! ] Cut surface and alteration sections are not surface treated.
[ ! ] When end tapping is specified, the part with red circles will be machined.
Type Overview
| Standard Aluminum Extrusions | Lightweight Aluminum Extrusions | High Rigidity Aluminum Extrusions | ||||||
| HFS Type | EFS Type | NFS (NEFS) Type | HFSL Type | NFSL Type | GFS Type | GNFS Type | ||
| Cross Section Photo | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | |
| Material | A6005CSS-T5 | A6005CSS-T5 | A6063S-T5 | A6005CSS-T5 | A6063S-T5 | A6061-T6 Equivalent | A6063S-T6 Equivalent | |
| Features | Standard cross section shape. | Have rigidity equivalent to HFS Series yet lighter and more economical. | Significant price reduction has been achieved by material change. Strength (*) is the same as that of HFS series and EFS Series. | Extrusion designed by focusing on light weight and economical price. Suitable for use when light weight and economical price are given priority over strength. | Further price reduction has been achieved by material change of HFSL. Strength (*) is the same as that of HFSL Series. | Extrusion with thickness designed by focusing on rigidity. Suitable for enclosures that receive high load. | Significant price reduction has been achieved by changing the load capacity and the material of the high rigidity aluminum extrusions. Strength (*) is the same as that of GFS series. | |
| Surface Treatment | Clear anodize Black anodize Clear coating Baked paint (yellow) | Clear anodize Black anodize | Clear anodize Black anodize | Clear anodize Black anodize | Clear Anodize | Clear Anodize | Clear Anodize | |
| Applicable Series | 5 | Available | - | Available | - | - | - | - |
| 6 | Available | Available | Available | Available | Available | |||
| 8 | ||||||||
| 8-45 | ||||||||
Part Number Display Method
| Part Number | - | L |
| NFS5-2020 | - | 800 |
| KNFS5-2020 | - | 4000 |
Configurable Length Extrusions (Alterations: Available)
| Type | Material | Surface Treatment | Part Number | L 0.5 mm Increments (Tolerance ±0.5 mm) | Mass kg/m | Sectional Area mm2 | Cross Sectional Moment of Inertia mm4 | |
| ℓx | ℓy | |||||||
| NFS | A6063S-T5 | Clear Anodize | NFS5-2020 | 50 to 4000 | 0.5 | 183 | 0.742 × 104 | 0.742 × 104 |
| NFS | A6063S-T5 | Black Anodize | NFSB5-2020 | 50 to 4000 | 0.5 | 183 | 0.742 × 104 | 0.742 × 104 |
Fixed Length Extrusion (Effective Length 4,000 mm) Specification Table (Alteration: Unavailable)
| Type | Material | Surface Treatment | Part Number | L mm (No tolerance regulation)*1 | Sectional Area mm2 | Cross Sectional Moment of Inertia mm4 | |
| ℓx | ℓy | ||||||
| NFS | A6063S-T5 | Clear Anodize | KNFS5-2020 | 4000 | 183 | 0.742 × 104 | 0.742 × 104 |
| NFS | A6063S-T5 | Black Anodize | KNFSB5-2020 | 4000 | 183 | 0.742 × 104 | 0.742 × 104 |
The actual length with extra lengths on ends is more than 4,000 mm (several 10mm longer).
Fixed Length Extrusions need to be cut by users thus the exact length cannot be specified.
[ ! ] Recommended heat resistance temperature is up to 70°C. Use with the temperature of above 100°C will cause bending due to the load.
However, for temporary high temperatures such as water vapor, up to 100°C is acceptable.
Features
Series 5 Applications
Most lightweight in aluminum extrusions usable with various fastening parts.
Suited for locations where small forces apply, such as for small coverings, small part racks and safety fences.
Usable in combination with different slot width extrusions.
Extrusions with different slot width can be combined when integrating frames and coverings.
Series 5, Series 6, Series 8 Slot Width Mixed Extrusions and Assembly Brackets for Different Extrusion Sizes are available.
Utilize these components to assemble an aluminum extrusion as you desire.
Selection Support Information
Extrusions can be connected in the following two main connection methods.
Bracket | Blind Joint | ||
Example of Connection | ![]() | ![]() | |
Characteristics | · Connect outside the extrusion · Can be moved to any position · Inferior in appearance | · Connect inside the extrusion · Superior in appearance · Machining is required on extrusions |
Center part (No corner part)
Size/Position | Left Side | Right Side | Both Sides | Cross Section View | |
M5 Depth 15 | LTP | RTP | TPW | ||
M3 Depth 6 (Heli-Coil Inserted) | LHP | RHP | HPW | ||
Tap Position | ![]() | ![]() | ![]() | ![]() |
[ ! ] The load capacity guideline is a load which the extrusion deflection amount is within 1 mm per 1,000 mm of length.
Deflection exceeding this will not cause damage, but should be considered the maximum practical deflection. (The allowable deflection amount is proportional to the length. Example: 500 mm => 0.5 mm, 2000 mm => 2 mm)

Alterations (Available only for configurable length, not available for fixed length)
Some alterations are not applicable depending on types and sizes. Check for the available alterations on each product page price lists.
The hyphens (-) in the price lists denote the unavailable items.
| Type | Alterations | Alteration Codes | Application Example | Contents |
|---|---|---|---|---|
| > End Tapping | End Tapping (Center Hole) | LTP / RTP / TPW LHP / RHP / HPW | ![]() | Adds tapped holes on extrusion ends. Blind Joints which require this alteration (Screw Joint / Simple Joint) |
| End Tapping (4 Side Holes) | LSP / RSP / SPW | ![]() | Adds tapped holes on extrusion end face and corner ends. | |
| > Cutting Method Change | High Precision Cut | SC | ![]() | Applies High Precision Cut with an overall length L tolerance of L ±0.2 (Standard = L ±0.5). *Only applicable to L ≤ 1,500 |
| 45-Degree Cut | L□T45 / R□T45 | ![]() | Cuts with 45-degree angle. In case of 45-Degree Cut, it is impossible to specify other alterations in the same direction. Example: HFS5-2020-500-LTP-LAT45 => Not acceptable (Alterations in the same direction (left)) HFS5-2020-500-LTP-RAT45 => Acceptable (Separate alterations on left and right) | |
| > Wrench Hole Drilling | Wrench Hole in Fixed Position | LWP / RWP | ![]() | Wrench hole(s) for Blind Joints are drilled. The hole location will be aligned with the mating extrusion’s end tapping location. Blind Joints which require this alteration (Screw Joint / Single Joint / Tapping Joint) |
| Hole Position Change for Extrusion End Cap Thickness | FL / FR | ![]() | Offsets the wrench hole for the fixed position of Extrusion End Cap thickness (3 mm). The extrusion end cap will be flat with the adjacent extrusion surface. *For 5 Series 20 Square Extrusions, shift the wrench hole by the cap thickness (2.5 mm). | |
| Wrench Hole in Specified Position | AH / BH / AV / BV | ![]() | Adds a wrench hole in a desired position from the left end face. Use for blind joint in beam sections, etc. | |
| > Counterboring | Counterbored Holes in Specified Position | Z6 / XA100 | ![]() | Adds a counterbored hole in a desired position from the left end face. Can be used for connecting extrusions or installing tables, etc. |
| > Blind Joint Dedicated Holes | D Hole | LDH / RDH | ![]() | Adds required holes for Single Joint connections. (Single Joints) |
| S Hole | LSH | ![]() | Adds required holes for Pre-Assembly Insertion Double Joint connections. (Pre-Assembly Insertion Double Joints) | |
| M Hole | LMH | ![]() | Adds required holes for Post-Assembly Insertion Double Joints, Center Joint connections. (Post-Assembly Insertion Double Joint / Center Joint) | |
| L Hole | JLP | ![]() | Adds required holes for Parallel Joint connections. (Parallel Joints) | |
| > Other Machining | HFSR End Tapping | LTS / RTS / TSW | ![]() | Necessary alteration to use Ends Protection Plates for HFSR series. |
| End Face C Chamfering | CW | ![]() | Adds C Chamfering on extrusion end faces. | |
| Labeling | ZZZ | ![]() | Adds a sticker with catalog No. etc. on the aluminum extrusions. Although number of characters are limited, customer's own serial number or unit number can be labeled. |
Extrusion Part Number | Applicable Extrusion End Cap | |||||
Product Type | Color | Thickness | Part Number | Qty. Used | ||
| HFS5-2020 HFSB5-2020 CAF5-2020 HFSY5-2020 NFS5-2020 NFSB5-2020 Same for Fixed Length Extrusions (Part number starting with K) | ![]() | End Cap Mounting | Black | 2.5 | HFC5-2020-B | 1 |
End Cap Mounting | Light Gray | 2.5 | HFC5-2020-S | 1 | ||
![]() | End Cap Mounting (Long Leg Type) | Black | 2.5 | HFCL5-2020-B | 1 | |
End Cap Mounting (Long Leg Type) | Light Gray | 2.5 | HFCL5-2020-S | 1 | ||
![]() | Bolt Mounting | Black | 2.5 | HFCB5-2020-B | 1 | |
Bolt Mounting | Light Gray | 2.5 | HFCB5-2020-S | 1 | ||
Bolt Mounting | Yellow | 2.5 | HFCB5-2020-Y | 1 | ||































