Specification Brand : Service Caster BulletPoint1 : These Service Caster Series #20 Semi Steel Cast Iron casters offer various wheel sizes and mounting heights: 3” Wheel: 4-1/8” mounting height; 4” Wheel: 5-1/8” mounting height; 5” Wheel: 6-1/8” mounting height. BulletPoint2 : Weight Capacity: 3", 4", and 5": 300 lbs Capacity/Caster BulletPoint3 : All casters feature a 10mm diameter (1.50 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. BulletPoint6 : Black without a brake Color : 4 Swivel - No Brakes - Silver ExternallyAssignedProductIdentifier1 : 0734005086959 ExternallyAssignedProductIdentifier2 : 734005086959 IncludedComponents : Wheel-Nut ItemName : Semi Steel Cast Iron Swivel Threaded Stem Caster Set of 4 w/4" x 1.25" Silver Wheels and 10mm Stems - Includes 4 Swivel - 1200 lbs Total Capacity - Service Caster Brand ItemPackageDimensions_Height : 1.96 inches ItemPackageDimensions_Length : 8.85 inches ItemPackageDimensions_Width : 2.83 inches ItemPackageQuantity : 4 ItemTypeKeyword : stem-casters LoadCapacity : 300.0 pounds Manufacturer : Service Caster Material : Semi Steel Cast Iron Material1 : Acrylonitrile Butadiene Styrene (ABS) Material2 : Rubber Material3 : Steel ModelNumber : Series #20 MountingType : Stem Mount NumberOfItems : 4 PartNumber : SCC-TS20S414-SSS-M1015-4 ProductDescription : Listing is for a set of four (4) Service Caster Series #20 swivel casters, four (4) swivel 10mm threaded stem casters with 4” diameter by 1-1/4” wide semi steel cast iron wheels. Supports a total weight of 1,200lbs (300lbs/per caster). When searching for a reliable and durable solution to your caster needs, consider Service Caster’s Series 20 sleeve bearing semi-steel cast iron 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 semi-steel wheels are abrasion resistant and rugged, maintaining effortless rolling under heavier loads, and provides a cost-effective solution over steel wheels. Sleeve bearings provide a metal sleeve inserted in a wheel to rest directly on the axle. This option is only recommended when rolling ease is less critical. 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 : 2020-08-06T15:34:57.306Z Size : 4" Wheel Style : M8x15mm SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Multi-Surface UnitCount : 4 UnspscCode : 31162702 WebsiteShippingWeight : 6.2 pounds