{"id":13324,"date":"2026-07-30T11:06:38","date_gmt":"2026-07-30T09:06:38","guid":{"rendered":"https:\/\/lubeteam.it\/prodotto\/stauff-heavy-series-stacking-bolt-type-af\/"},"modified":"2026-08-07T10:34:42","modified_gmt":"2026-08-07T08:34:42","slug":"stauff-heavy-series-stacking-bolt-type-af","status":"publish","type":"product","link":"https:\/\/lubeteam.it\/en\/product\/stauff-heavy-series-stacking-bolt-type-af\/","title":{"rendered":"STAUFF Heavy Series Stacking Bolt Type AF"},"content":{"rendered":"

Operating Principle<\/h3>\n

The component identified as the STAUFF Heavy Series Stacking Bolt Type AF<\/strong> is a key fastening element within Heavy Series pipework systems. Specifically designed for integration with STAUFF Groups 4S and 5S, this bolt enables the secure vertical stacking of multiple fastening levels, optimising space within hydraulic system layouts. The use of this Metal Hardware is closely associated with the Heavy Twin Series, allowing compact pressure lines to be configured. Its primary function is to maintain permanent structural tension between the plates while withstanding the vibrations and severe dynamic loads typical of highly stressed industrial hydraulic circuits.<\/p>\n

Construction Features<\/h3>\n

The threaded components in the range, including Type AF Stacking Bolts, offer a high degree of dimensional and material flexibility. According to the official technical data, all threaded components in the series are available with ISO Metric Thread or, alternatively, Unified Coarse Thread (UNC). Construction materials and surface finishes cover a wide variety of operating requirements and demanding environments. Material options include: uncoated Carbon Steel (W1); Zinc\/Nickel-Plated Carbon Steel (W3), which is the standard finish option for North America; V2A Stainless Steel 1.4301\/1.4305 AISI 304\/303 (W4); and V4A Stainless Steel 1.4401\/1.4571 AISI 316\/316 Ti (W5). The STAUFF Heavy Series Stacking Bolt Type AF also operates in perfect structural synergy with other hardware components in the range, including the Mounting Rail Nut (GMV), Mounting Rail (STSV), Channel Rail Adaptor (CRA) and Safety Locking Plates (SIPD).<\/p>\n

Applications and Sectors<\/h3>\n

The STAUFF Heavy Series Stacking Bolts Type AF<\/strong> are primarily used in the Hydraulic Components sector. They are widely employed for securing pipework in industrial machinery, hydraulic power units and heavy-duty automation systems. Their exclusive compatibility with STAUFF Groups 4S and 5S makes them suitable for installations where shear forces require a higher degree of retention than standard series solutions. Typical installations demand complete structural reliability, which is why the design is based on strict tolerances.<\/p>\n

Fluid Specifications<\/h3>\n

Although it is primarily a mechanical component, the STAUFF Heavy Series Stacking Bolt Type AF plays an important role in Fluid Contamination Control. Stable anchoring helps prevent micro-cracking and pipe detachment caused by continuous pulsations of pressurised fluid. This minimises the risk of external hydraulic fluid leakage and prevents external contaminants from entering the circuit, thereby protecting the integrity of the system.<\/p>\n

Summary Technical Table of the Main Features of the STAUFF Heavy Series Stacking Bolt Type AF<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Feature<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Series<\/td>\nHeavy Series \/ Heavy Twin Series<\/td>\n<\/tr>\n
Compatible STAUFF Groups<\/td>\nGroup 4S, Group 5S<\/td>\n<\/tr>\n
Thread Types (Range)<\/td>\nISO Metric, Unified Coarse (UNC)<\/td>\n<\/tr>\n
Material W1<\/td>\nCarbon Steel, uncoated<\/td>\n<\/tr>\n
Material W3<\/td>\nZinc\/Nickel-Plated Carbon Steel<\/td>\n<\/tr>\n
Material W4<\/td>\nV2A Stainless Steel 1.4301\/1.4305 (AISI 304\/303)<\/td>\n<\/tr>\n
Material W5<\/td>\nV4A Stainless Steel 1.4401\/1.4571 (AISI 316\/316 Ti)<\/td>\n<\/tr>\n
Related Hardware Components<\/td>\nGMV, STSV, CRA, IS, SIPD, AS<\/td>\n<\/tr>\n
Field of Application<\/td>\nHydraulic Components<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

Product Codes<\/h3>\n
\n\n\n\n\n\n\n
Product Family<\/th>\nModel<\/th>\nSeries<\/th>\nSTAUFF Group<\/th>\n<\/tr>\n<\/thead>\n
STAUFF Group 4S<\/td>\nStacking Bolt Type AF<\/td>\nHeavy Series<\/td>\n4S<\/td>\n<\/tr>\n
STAUFF Group 5S<\/td>\nStacking Bolt Type AF<\/td>\nHeavy Series<\/td>\n5S<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n","protected":false},"excerpt":{"rendered":"

Optimise the fastening of your hydraulic systems with the STAUFF Heavy Series Stacking Bolt Type AF. Designed for STAUFF Groups 4S and 5S of the Heavy Series, it is an essential component for Fluid Contamination Control. It ensures maximum stability and integrates perfectly with additional metal hardware, providing high mechanical strength. Ideal for complex industrial applications, it supports various material and thread configurations. The available product codes refer to the following families: STAUFF Group 4S, STAUFF Group 5S.<\/p>\n","protected":false},"featured_media":13070,"template":"","meta":{"_joinchat":[]},"product_brand":[],"product_cat":[101,472],"product_tag":[281],"class_list":{"0":"post-13324","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-clamps","7":"product_cat-heavy-twin-series-clamps","8":"product_tag-stauff","10":"first","11":"instock","12":"shipping-taxable","13":"product-type-simple"},"yoast_head":"\nSTAUFF Heavy Series Stacking Bolt Type AF \u2013 LubeTeam Hydraulic<\/title>\n<meta name=\"description\" content=\"STAUFF Heavy Series Stacking Bolt Type AF for hydraulic systems. Compatible with Groups 4S and 5S. 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