Monstro-Coupler
Monstro-Coupler

Monstro-Coupler for 6" Pipe, 6.625 OD
Silver
Part Number:
MLM6.625

Monstro-Coupler

Monstro-Coupler for 6" OD Tubing
Silver
Part Number:
MLM6

Monstro-Coupler

Monstro-Coupler for 5" Pipe, 5.56 OD
Silver
Product Number:
MLM5.56

Monstro-Coupler

Monstro-Coupler 4.5
Silver
Part Number
MLM4.5

Monstro-Coupler

Monstro-Coupler
Silver
Part Number:
MLM4

Monstro-Coupler

MLM3 Monstro-Coupler for 2.5" Pipe or 3" OD tubing.
Silver
Part Number:
MLM3

Monstro-Coupler

Monstro-Coupler for 2" Pipe or 2.5 OD Tubing
Silver
Part Number:
MLM2.5

Monstro-Coupler

Monstro-Coupler for 2" Pipe or 2.5" OD Tubing
Black Anodized
Part Number:
MLB2.5

Monstro-Coupler

Monstro-Coupler 3" Tube to 2" Tube
(Any of the Monstro-Couplers can be made this way.)
Silver
Part Number:
MLSM3to2

Monstro-Coupler

Standard Monstro-Coupler base with a 1/2-13 TPI threaded hole.

Monstro-Coupler

Monstro-Coupler Base with 1/2" Countersunk hole.
To order these add a -CS after the part number.

The Monstro-Couplers are designed to fit pipes larger than the standard theatrical battens. CNC machined from solid billet aircraft-grade aluminum, they are perfect for attaching to odd size pipes and tubes. Monstro-Couplers have a narrow size range of application. Monstro-Couplers are designed with a plus or minus 0.0625" tolerance on their nominal size to ensure that they will fit with the Aluminum Association pipe and tubing manufacturing tolerances. One size does NOT fit all! See sizes listed below. Custom sizes are available upon request.

Different size Monstro-Couplers can be attached together to make a swiveling connection. The product MLSM3TO2 defines a swivel Monstro-Coupler for fastening a 3" tube to 2" tube. Swivel couplers can also be made with two couplers of the same size.

Stainless steel hardware is available as a custom option. Add “-SS” to the part number for 304 SS, a less expensive stainless steel which is fine for most inland outdoor usage.
Add “-316SS” to the part number for 316 stainless steel which provides corrosion protection in marine usage. 316 stainless steel is expensive but worth the extra cost for salt water environments, fountains, and swimming pools.

A black anodized finish is also available as a custom option.

Download Spec Sheet (PDF)
Minimum Size

2.0" Pipe, 2.5" OD tube (for MLM2.5)

Maximum Size

Most any size

Safe Vertical Working Load

1100 lbs.

Hardware

Standard Hardware -
1-1/4" Gr 8 zinc plated steel bolt.
1" OD Belleville spring washer and nylock nut.

Dimensions

1" thick, 1" wide

Weight

MLM2.5 = 1.2 pounds

Case Quantities

each

Order Codes

Assembly Charge Assembly Charge for combining 2 couplers into a swivel, includes hardware
MLB2.5 Monstro-Coupler for 2.5" OD Tube, Black Anodized
MLM10.875 Monstro-Coupler for 10" Pipe (10.75" OD), Silver
MLM2.5 Monstro-Coupler for 2.5" OD Tube, Silver
MLM2.875 Monstro-Coupler for 2.5" Pipe (2.875"OD), Silver
MLM3 Monstro-Coupler for 3" tubing (3.12" OD Tube), Silver
MLM3.625 Monstro-Coupler for 3" Pipe (3.625" OD), Silver
MLM4 Monstro-Coupler for 3.5" Pipe (4.05" OD), Silver
MLM4.5 Monstro-Coupler for 4" Pipe (4.5" OD), Silver
MLM5.56 Monstro-Coupler for 5" Pipe (5.563"OD), Silver
MLM6 Monstro-Coupler for 6" Tubing (6." OD Tube), Silver
MLM6.625 Monstro-Coupler for 6" Pipe, 6.625 OD, Silver
MLSM3TO2 Mega-Swivel Coupler 3" OD Tube to 2" OD Tube , Silver