AU4 – 1-3/8″ A/F

Technical Data

Plan and side view diagrams of the Termate standoff insulators in the AU4 footprint. Labels show width across flats is 1 and 3/8 inches, width across corners is 1 and 1/2 inches, base diameter is 1 and 1/4 inches, and shoulder height is 3/8 inches. Other dimensions are labelled with a letter, indicating a specific measurement in the table below.
Part numberHeight [H]Thread Size [M]*Thread Depth [D]Box Qty.
AU4-030-0141-3/16″1/4″ UNC5/16″60
AU4-030-5161-3/16″5/16″ UNC3/8″60
AU4-035-0141-3/8″1/4″ UNC5/16″60
AU4-035-5161-3/8″5/16″ UNC3/8″60
AU4-035-0381-3/8″3/8″ UNC3/8″60
AU4-040-0141-9/16″1/4″ UNC5/16″50
AU4-040-5161-9/16″5/16″ UNC3/8″50
AU4-040-0381-9/16″3/8″ UNC3/8″50
AU4-045-0141-3/4″1/4″ UNC5/16″50
AU4-045-5161-3/4″5/16″ UNC3/8″50
AU4-045-0381-3/4″3/8″ UNC5/8″50
AU4-050-0142″1/4″ UNC5/16″25
AU4-050-5162″5/16″ UNC3/8″25
AU4-050-0382″3/8″ UNC5/8″25
AU4-050-0122″1/2″ UNC5/8″25
AU4-060-0142-3/8″1/4″ UNC5/16″25
AU4-060-5162-3/8″5/16″ UNC3/8″25
AU4-060-0382-3/8″3/8″ UNC5/8″25
AU4-060-0122-3/8″1/2″ UNC5/8″25

*Fixing details: Hole diameter = Standoff thread size [M]+1/16″

UL Listing

UL Recognised Component

File Number E505645



Glass Reinforced Polyamide 6.6

Insert Material


Operating Temperature

-4°F to +266°F



Oxygen Index


Glow Wire



Equipment Voltage, Ue

1000 V AC / 1500 V DC

Insulation Voltage, Ui

1000 V AC / 1500 V DC

Impulse Voltage, Uimp

12 kV

Available for Download