Specification Brand : Service Caster BulletPoint1 : These Service Caster Series #20 Solid 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. BulletPoint2 : Weight Capacity: 3", 3.5", 4",and 5": 300 lbs Capacity/Caster BulletPoint3 : All casters feature a 12mm diameter (1.75 TPI x 1-1/2”) threaded stem. Threaded stems can be difficult to measure. Service Caster recommends having existing threads checked on a thread gauge to determine correct thread size before ordering. 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) places a positive locking force against the wheel tread locking the wheel only. The total lock brake (TTL) 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 - Total Lock Brakes - Blue ExteriorFinish : Metallic ExternallyAssignedProductIdentifier1 : 0882413321350 ExternallyAssignedProductIdentifier2 : 882413321350 HoleCount : 1000 ItemName : Stainless Steel Solid Polyurethane Swivel Threaded Stem Caster Set of 4 w/3.5" x 1.25" Blue Wheels and 12mm Stems - Includes 4 with Total Lock Brakes - 1200 lbs Total Capacity - Service Caster Brand ItemPackageDimensions_Height : 5.5 inches ItemPackageDimensions_Length : 11 inches ItemPackageDimensions_Width : 8.5 inches ItemPackageQuantity : 4 ItemTypeKeyword : stem-casters LoadCapacity : 300.0 pounds Manufacturer : Service Caster Material : Polyurethane ModelNumber : Series #20 MountingType : Stem Mount NumberOfItems : 4 PartNumber : SCC-SSTSTTL20S3514-SPUS-M1215-4 ProductDescription : Listing is for a set of four (4) Service Caster Series #20 stainless steel swivel casters, four (4) swivel 12mm threaded stem casters with total lock brakes, 3.5” diameter by 1-1/4” wide solid polyurethane wheels. Supports a total weight of 1,200lbs (300lbs/per caster). 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. And the non-marking, non-marring polyurethane wheel is molded as one solid piece, making it free from debonding. This ensures the wheel will not flat spot, as can occur with comparable polyurethane wheels, resulting in a smooth and solid roll over long periods of time. Mounting options include top plate, bolt hole and standard and metric threaded stem sizes. Service Caster is unsurpassed in quality, reliability, and excellent customer service. Count on us to move you forward. ProductSiteLaunchDate : 2020-07-31T14:15:43.092Z Size : 3.5" Wheel Style : Wire Collated SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Multi-Surface UnitCount : 4 WebsiteShippingWeight : 6.4 pounds