Project Enclosure (4x2x1")

Comments about RadioShack Project Enclosure (4x2x1"):

Board actually fits tight without screws. Holes may need slight enlargment ~1/64 to use screws.

Comments about RadioShack Project Enclosure (4x2x1"):

I really wish there were datasheets for these! To fulfill a need:
Fits a circuit board laid flat 3.0"x1.688" (1.812" if the protruding slots are filed away)
PCB screw holes arranged in 2.5"x1.25" rectangle (measured to hole centers)
There are slots to fit PCBs vertically in the box, too. These will fit 3 boards 0.75"x1.81" (center, and 1" either way from center) or 2 boards 0.75"x3.80" (0.75" apart, each 0.375" from center).
The 4 cover and 4 board standoffs are 0.24" diameter. Hole diameter approx 0.078" (2mm). Distance to hole centers from the inner surface of the 4" sides of the box: 0.291".
Cover standoffs take up 0.413"x0.413" square at the corners, measured from inner edge of the box. Small sheets of plastic 0.033" thick connect the cover standoffs for their full height of 0.75" to the 4" walls of the box. Similar sheets of plastic connect the same standoffs to the 2" walls of the box, but they are only 0.438" high.
Board standoffs are 0.25" high. Hole center is 0.681" from inside of 2" wall.
Standoffs take up total 0.787"x0.413" rectangle in each corner.
Cover is 0.134" thick, not including lip. 0.272" including lip. Hollow cylinders descend towards the cover standoffs, same outer diameter. Inner diameter 0.102". Screw holes are countersunk (cover screws included).
Cover has an outline for a DE-9 serial port molded on the inside surface. It is 0.375" from inner edge of the main box, or 0.312" from inner edge of the cover's lip, centered on the 2" end of the box. Outline is 0.938"x0.438" rounded rect.
A metal plate fits snugly into the box, resting on top of the cover standoffs. The cover will fit on top of the plate.
All measurements approximate, +/-0.015"

Comments about RadioShack Project Enclosure (4x2x1"):

Exactly as expected.Rick [@]

Comments about RadioShack Project Enclosure (4x2x1"):

Good For Use For Small Things But when you try to put a 9v battery in there,its a really tight squeze

Comments about RadioShack Project Enclosure (4x2x1"):

I built a hand-held counter with the box. The box wasn't big enough to fit Radio Shack's PCBs 276-150 nor 276-149a. Which boards should I use with this box? Had to shave the board and nip down most of the box's board supports to squeeze the board in. Also, there is a plastic smell that eminates from the box when shaving, nipping, etc. Is this odor poisonous? If so, put a warning on the label. And the mounts inside aren't so useful when there's no related parts that can fit. Radio Shack, please improve this product and made compatible boards that can fit into it.

Comments about RadioShack Project Enclosure (4x2x1"):

This is a nice box, but I wish it had a snap lid. The screws can get in the way for a detailed project. As if it were made for a single use and remanufactured by radio shack as a project box in different sizes

Comments about RadioShack Project Enclosure (4x2x1"):

This plastic box is well made, and can be drilled without melting. However, the internal space is much less than 4 x 2 x 1. The max rectangular circuit board is limited to 1 5/8" x 2 15/16" due to the supports for the lid. The PC mounting studs are a tiny bit too close to allow a 9V battery to slide between then, so part of the circuit board space must be used for the battery (mounted on its side). The moulded slots, while nice for alternate PC board mounting, also limit the number and placement of connectors on the box. I had to grind one slot off to mount a power switch.
Basically a good box, but be aware of the space limitations.

Comments about RadioShack Project Enclosure (4x2x1"):

Used it to make an integrated garage door opener for my car. Worked great. It was annoying to lose space for the standoffs, but it wasn't the end of the world.

Comments about RadioShack Project Enclosure (4x2x1"):

Aluminum covers were all scratched beyoud use on all 5 enclosures I bought, even the suppied plastic cover has flaws in it. Internal box use is reduced by standoffs for top cover. PCB stand off dimensions are not supppied so your on your own and they do not follow standard PCB spacing.

Comments about RadioShack Project Enclosure (4x2x1"):

Actual circuit board space available for use is diminished by molded-in standoffs for screwing down the circuit board (lying flat/parallel to the bottom) and the cover. A reasonable estimate of space lost at each corner is 0.4 in by 0.8 inches.
The 0.4 is oriented across the 2 inch dimension, and the 0.8 oriented along the 4 inch dimension.

Otherwise the interior is 3.8 inches long and 1.83 across. Taking into account some moldings for vertical-mount card slide-in guides, available width for board is more like 1.7 inches.

Interior height of the bottom is 0.9 inches.
Height from interior bottom to top of standoffs for the lid is 0.75 inches. (The aluminum lid sits down on these standoffs.)
A skirt on the plastic lid protrudes 0.12 inch into the box when mounted to the bottom.


Box is sturdy for its size. Plastic is hard. Drilling and filing proceed without effort.

The only real gotcha is the lost space at the corners.