National Hardware N281-113 Garage Door Extension Spring, Steel, Black, 22" x 150# Specialty Door Hardware Cartons are heavy duty cardboard

Cartons are heavy duty cardboard of uniform size and distinctive yellow color for better retail identity

1/2" Shank - 2-9/16" O

Premium aluminum oxide and zirconia abrasive blend on durable waterproof polyester backing adds extended life

Plug Type: Polarized

vital for growth & drought resistance

National Hardware N281-113 Garage Door Extension Spring, Steel, Black, 22" x 150# Specialty Door Hardware Cartons are heavy duty cardboardHighlights: Series: 7691 Nominal Size: 22" Material: Steel Finish: Black Load Capacity: 150 Lb End color coded white per industry standards for easy identification Maximum overall safe length when stretched is 67"