Specification Brand : Service Caster BulletPoint1 : These Service Caster Series #20 Hard Rubber 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. BulletPoint2 : Weight Capacity: 3": 275 lbs Capacity/Caster; 3.5": 285 lbs Capacity/Caster; 4" and 5": 300 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, a total lock brake, or a posi lock brake. The top lock brake places a positive locking force against the wheel tread locking the wheel only. The total lock brake simultaneously locks the wheel and the swivel for a complete stationary position. The posi lock brake places a positive locking force against the wheel tread similar to the top lock brake, but the pedal is located above the wheel tread rather than on the side of the wheel. 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 w/2 Posi Lock Brakes ExternallyAssignedProductIdentifier1 : 0734005117189 ExternallyAssignedProductIdentifier2 : 734005117189 IncludedComponents : Nuts ItemName : Swivel Square Stem Caster Set 4 w/3.5” x 1.25” Black Hard Rubber Wheel-7/8” x 2” Square Stem with (3) 17/64” Diameter Mounting Holes-Include 2 Posi Lck Brakes-1140lbs. Cpty/Caster-Service Caster Brand ItemPackageDimensions_Height : 20.6 centimeters ItemPackageDimensions_Length : 7.3 centimeters ItemPackageDimensions_Width : 12.9 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : stem-casters LoadCapacity : 250.0 pounds Manufacturer : Service Caster Material : Hard Rubber Material1 : Steel Material2 : Gray Rubber ModelNumber : Series #20 MountingType : Stem Mount NumberOfItems : 4 PackageLevel : unit PartNumber : SCC-SQ20S3514-HRS-PLB-78-2-S-2 ProductDescription : Listing is for four (4) Service Caster Series #20 swivel casters, two (2) swivel & (2) swivel with posi lock brakes, with a 3-1/2” diameter by 1-1/4” wide black hard rubber wheels and a 7/8" square stem. Supports a total weight of 1,140lbs (285lbs/caster). When searching for a reliable and durable solution to your caster needs, consider Service Caster’s Series 20 square stem hard rubber casters. The Service Caster Series 20 is ideal for light and medium duty material handling, carts, equipment, and shop projects. The hard rubber wheels not only provide higher load capacities and impact resistance than comparable wheels, but are also resistant to most chemicals and oils. 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 and zinc plated finish that provides durability under any condition and keeps you safely moving forward. Service Caster is unsurpassed in quality, reliability, and excellent customer service. Count on us to move you forward. ProductSiteLaunchDate : 2023-01-26T18:21:11.271Z Scent : 1 Size : 3.5" Wheel - 7/8" Stem Style : 4 Swivel Brake Casters SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 SurfaceRecommendation : Multi-Surface UnitCount : 4 UnspscCode : 31162702 WebsiteShippingWeight : 8 pounds