Specification Brand : Service Caster BulletPoint1 : These Service Caster Series #20 Polyurethane casters offer various wheel sizes and mounting heights: 3” Wheel: 4-1/8” mounting height; 3-1/2” wheel: 4-5/8” mounting height; 4” wheel: 5-1/8” mounting height; 5” wheel: 6-1/8” mounting height; 6” wheel: 7-1/8” mounting height. Wheels are offered in five different colors – Gray, Blue, Black, Maroon, and Red. BulletPoint2 : Weight Capacity: 3" and 3.5": 300 lbs Capacity/Caster; 4", 5", and 6": 350 lbs Capacity/Caster BulletPoint3 : All casters feature a 7/8” x 2” square stem with (3) 17/64” diameter mounting holes. Don't see the size you need? No problem! Call us or message us by clicking the blue Service Caster Corporation hyperlink underneath the buy or add to cart button and then clicking the ask a question button. BulletPoint4 : Brake options include a top lock brake (TLB) or a total lock brake (TTL). The top lock brake (TLB), which is featured on 3", 3-1/2", 4", and 5" wheel sizes, places a positive locking force against the wheel tread locking the wheel only. The total lock brake (TTL), which is featured on all wheel sizes, also places a positive locking force against the wheel tread, but the total lock brake (TTL) simultaneously locks the wheel and the swivel for a complete stationary position. BulletPoint5 : Find other wheel materials, sizes and all Service Caster products at our Amazon Storefront. Click on the “by Service Caster” link above the main title on any Service Caster page listing. Color : 4 Swivel - No Brakes - Black ExternallyAssignedProductIdentifier1 : 011586601321 ExternallyAssignedProductIdentifier2 : 0011586601321 IncludedComponents : stem casters ItemName : Swivel Square Stem Caster Set 4 w/3.5” x 1.25” Black Polyurethane Wheel - 7/8” x 2” Square Stem with (3) 17/64” Diameter Mounting Holes - Includes 4 Swivel-1200 lbs. Cpty/Caster - Service Caster Brand ItemPackageDimensions_Height : 23.2918 centimeters ItemPackageDimensions_Length : 7.6962 centimeters ItemPackageDimensions_Width : 14.3002 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : stem-casters LoadCapacity : 250.0 pounds Manufacturer : Service Caster Material : Polyurethane Tread on Polyolefin Core Material1 : plastic with metal nut Material2 : plastic with metal nut Material3 : plastic with metal nut Material4 : plastic with metal nut Material5 : plastic with metal nut ModelNumber : Series #20 MountingType : Stem Mount NumberOfItems : 4 PartNumber : SCC-SQ20S3514-PPUB-BLK-78-4 Pattern : 2 inches ProductDescription : Listing is for four (4) Service Caster Series #20 swivel casters with a 3-1/2” diameter by 1-1/4” wide black polyurethane wheels and a 7/8" square stems. Supports a total weight of 1,000lbs (250lbs/per caster). When searching for a reliable and durable solution to your caster needs, consider Service Caster’s Series 20 square stem polyurethane casters.The Service Caster Series 20 is ideal for light and medium duty material handling, carts, equipment, and shop projects. The zinc plated finish provides durability under any condition, while the non-marking, non-marring polyurethane wheels perform especially well on hard surfaces such as concrete, tile, and wood. The square stems are designed to be bolted or riveted onto the inside of angled iron legs or against any flat surface. All rolling on a finely crafted ball bearing design that keeps you moving forward. ProductSiteLaunchDate : 2021-03-12T19:38:54.365Z Size : 3.5" Wheel - 7/8" Stem Style : Red SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Multi-Surface UnitCount : 4 WebsiteShippingWeight : 6.8 pounds