- Stock 1522
6 x 6 x 4 Nema 1 Screw Cover Enclosure · Hammond Manufacturing CSKO664
Type 1 steel screw-cover enclosure with knockouts for indoor junction, pull, or switch box applications. The 6 x 6 x 4 in (152 x 152 x 102 mm) wall-mount box is powder coated grey and commonly used where a compact steel enclosure is needed for branch circuit splices or control terminations.
What this product is for
This steel screw-cover enclosure is used as an indoor junction, pull, or switch box in commercial and industrial electrical systems. It provides a compact wall-mount housing for splices, terminal blocks, and small control components.
Use for
- Indoor branch circuit junctions
- Pull box and wire splice points
- Small control and terminal enclosures
- Wall-mounted electrical protection in dry locations
Avoid for
- Wet or washdown locations
- Outdoor installations
- Corrosive environments unless additional protection is specified
- Applications requiring gasketed Type 12, 4, or 4X protection
Best for
Electricians and panel builders who need a standard Type 1 steel enclosure with factory knockouts for faster conduit entry and straightforward wall mounting.
Installed in
Commercial buildings, light industrial spaces, service rooms, maintenance areas, and indoor utility spaces where a general-purpose steel junction box is required.
Why this product exists
This enclosure provides a simple code-oriented way to protect wiring connections and small electrical components indoors. Factory knockouts help reduce field drilling time compared with solid-cover boxes.
Compared with similar products
Compared with a box without knockouts, this model speeds conduit entry for standard indoor work. Compared with gasketed enclosures, it is intended for basic indoor Type 1 applications rather than dust-tight or weather-resistant service.
Specifications
- Manufacturer: Hammond Manufacturing
- Manufacturer part number: CSKO664
- Series: CSKO
- Product type: Screw-cover enclosure with knockouts
- Material: Mild steel
- Finish: ANSI 61 grey powder coat
- NEMA rating: Type 1
- Mounting: Wall mount
- Dimensions: 6 x 6 x 4 in (152 x 152 x 102 mm)
- Capacity: 144 cu in (approximately 2.36 L)
- Cover type: Screw cover
- Application: General-purpose indoor commercial use as a junction, pull, or switch box
- Typical buying note: A 6 x 6 x 4 in box is commonly selected where more wiring space is needed than a device box, but actual box fill and conductor count depend on conductor size, devices, fittings, and local electrical code.
- ApplicationGeneral-purpose indoor commercial use as a junction, pull, or switch box
- MaterialMild steel
- MountingWall mount
- Dimensions6 x 6 x 4 in (152 x 152 x 102 mm)
- SeriesCSKO
- Cover TypeScrew cover
- NEMA RatingType 1
- Typical Buying NoteA 6 x 6 x 4 in box is commonly selected where more wiring space is needed t
- FinishANSI 61 grey powder coat
- Capacity144 cu in (approximately 2.36 L)
- BrandsHammond Manufacturing
- Stock in Elmira4
- Stock in Flesherton4
Aptico Supply Delivery
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Local delivery routes, pickup options, and contractor-focused service from our Elmira and Flesherton locations.

Delivery Built Around Electrical Contractors
Aptico Supply helps electricians, contractors, and commercial buyers get the electrical materials they need without unnecessary delays. Whether you are ordering for a jobsite, restocking service inventory, or arranging pickup, our delivery options are designed to keep work moving.
Free Daily Delivery
Free daily delivery is available for larger contractor accounts.
- Order by 9:00 AM for morning delivery
- Order by 2:00 PM for afternoon delivery
- Available in qualifying local delivery areas
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Free weekly delivery is available for smaller accounts in select service areas.
- Elmira area delivery: Tuesday
- Flesherton area delivery: Thursday
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- Elmira pickup available
- Flesherton pickup available
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See our local delivery coverage below. Delivery charges may apply outside regular route areas or for oversized items.
Delivery Questions
Do you offer free delivery?
Yes, free delivery is available for qualifying contractor accounts and selected local delivery routes.
Can I pick up my order?
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Do delivery charges apply?
Delivery charges may apply outside regular local routes, for smaller orders, or for oversized and heavy items.
Can you deliver to jobsites?
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